{"id":646,"date":"2026-04-19T21:19:41","date_gmt":"2026-04-19T19:19:41","guid":{"rendered":"https:\/\/generalistik-meistern.de\/?page_id=646"},"modified":"2026-04-20T18:08:10","modified_gmt":"2026-04-20T16:08:10","slug":"herz-kreislauf-system-lernzettel","status":"publish","type":"page","link":"https:\/\/generalistik-meistern.de\/?page_id=646","title":{"rendered":"Herz-Kreislauf-System &#8211; Lernzettel"},"content":{"rendered":"\n<!DOCTYPE html>\n<html lang=\"de\">\n<head>\n<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n<title>Lernzettel \u2013 Herz-Kreislaufsystem<\/title>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Playfair+Display:wght@700;900&#038;family=Source+Sans+3:ital,wght@0,300;0,400;0,600;0,700;1,400&#038;display=swap\" rel=\"stylesheet\">\n<style>\n:root {\n  --red:    #c0392b;\n  --rose:   #e74c3c;\n  --cream:  #fdf6f6;\n  --warm:   #fdecea;\n  --sand:   #f5c6c6;\n  --dark:   #1a0505;\n  --muted:  #7b3030;\n  --blue:   #1a5276;\n  --lblue:  #2e86c1;\n  --green:  #1e8449;\n  --teal:   #1b7a6e;\n  --purple: #6c3483;\n  --orange: #ca6f1e;\n  --accent: #d4a017;\n}\n* { box-sizing: border-box; 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display:block; font-size:0.72rem; font-weight:700; letter-spacing:0.1em; color:#1a5276; margin-bottom:0.6rem; }\n.ntk p, .ntk li { font-size:0.88rem; color:#1a3a5c; line-height:1.6; }\n.ntk ul { padding-left:1.2rem; }\n.ntk strong { color:#1a5276; }\n\n\/* BLOOD FLOW ARROW *\/\n.flow-arrow { display:inline-block; width:30px; height:12px; position:relative; margin:0 0.3rem; vertical-align:middle; }\n\n\/* KREISLAUF PFAD *\/\n.kreislauf-box { border-radius:12px; padding:1rem 1.2rem; margin:0.5rem 0; font-size:0.85rem; display:flex; align-items:flex-start; gap:0.6rem; }\n\n\/* HERZKLAPPEN GRID *\/\n.klappe-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:0.8rem; margin:0.8rem 0; }\n.klappe { border-radius:10px; padding:0.9rem; border:2px solid; }\n.klappe h5 { font-weight:700; font-size:0.9rem; margin-bottom:0.3rem; }\n.klappe p { font-size:0.82rem; }\n\n\/* GEF\u00c4SSE *\/\n.gefaess-row { display:flex; gap:0.8rem; margin:0.8rem 0; flex-wrap:wrap; }\n.gefaess { flex:1; 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}\n.fc-back { background:linear-gradient(135deg,#7b1010,#c0392b); color:white; transform:rotateY(180deg); }\n.fc-back .a { font-size:0.84rem; line-height:1.5; }\n.fc-cat { font-size:0.65rem; text-transform:uppercase; letter-spacing:0.08em; opacity:0.7; margin-bottom:0.3rem; }\n.fc-controls { display:flex; gap:0.7rem; align-items:center; margin-bottom:1rem; flex-wrap:wrap; }\n.fc-controls button { border:none; border-radius:8px; padding:0.4rem 0.9rem; font-size:0.8rem; font-weight:700; cursor:pointer; transition:all 0.2s; }\n.btn-filter { background:#fdecea; color:var(--dark); border:1px solid #e57373!important; }\n.btn-filter.active { background:var(--red); color:white; border-color:var(--red)!important; }\n.fc-count { font-size:0.82rem; color:var(--muted); }\n\nfooter { text-align:center; padding:2rem; color:var(--muted); font-size:0.8rem; border-top:1px solid var(--sand); margin-top:2rem; }\nsvg text { font-family:'Source Sans 3',sans-serif; }\n<\/style>\n<\/head>\n<body>\n\n<nav class=\"sticky-nav\">\n  <a href=\"#definition\">\u2764\ufe0f Definition<\/a>\n  <a href=\"#anatomie\">\ud83e\udec0 Herzanatomie<\/a>\n  <a href=\"#klappen\">\ud83d\udeaa Herzklappen<\/a>\n  <a href=\"#kreislauf\">\ud83d\udd04 Blutkreislauf<\/a>\n  <a href=\"#gefaesse\">\ud83e\ude78 Blutgef\u00e4\u00dfe<\/a>\n  <a href=\"#weg\">\ud83d\udccd Blutweg<\/a>\n  <a href=\"#karten\">\ud83c\udccf Lernkarten<\/a>\n<\/nav>\n\n<header>\n  <div style=\"max-width:980px;margin:0 auto;\">\n    <div class=\"badge\">BFS Pflege \u00b7 CE06 \u00b7 Anatomie &#038; Physiologie<\/div>\n    <h1>Herz-Kreislaufsystem<\/h1>\n    <p>Vollst\u00e4ndiger Lernzettel mit Diagrammen \u00b7 Herzanatomie \u00b7 Blutkreislauf \u00b7 Klappen \u00b7 Lernkarten<\/p>\n    <div class=\"toc-grid\">\n      <a class=\"toc-item\" href=\"#definition\"><span>\u2764\ufe0f<\/span>Definition &#038; Lage<\/a>\n      <a class=\"toc-item\" href=\"#anatomie\"><span>\ud83e\udec0<\/span>Herzanatomie<\/a>\n      <a class=\"toc-item\" href=\"#klappen\"><span>\ud83d\udeaa<\/span>Herzklappen<\/a>\n      <a class=\"toc-item\" href=\"#kreislauf\"><span>\ud83d\udd04<\/span>Blutkreislauf<\/a>\n      <a class=\"toc-item\" href=\"#gefaesse\"><span>\ud83e\ude78<\/span>Blutgef\u00e4\u00dfe<\/a>\n      <a class=\"toc-item\" href=\"#weg\"><span>\ud83d\udccd<\/span>Kompletter Blutweg<\/a>\n      <a class=\"toc-item\" href=\"#karten\"><span>\ud83c\udccf<\/span>Lernkarten<\/a>\n    <\/div>\n  <\/div>\n<\/header>\n\n<main>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     1. DEFINITION & LAGE\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"definition\">\n  <div class=\"num\" style=\"background:var(--red);\">1<\/div>\n  <h2>Definition &amp; Lage des Herzens<\/h2>\n<\/div>\n\n<div class=\"card\">\n  <h3>Was ist das Herz?<\/h3>\n  <div class=\"def-box\">\n    <strong>Herz (Cor)<\/strong> = Hohlmuskel \u00b7 zentrale Pumpe des K\u00f6rpers \u00b7 treibt Blut durch alle Blutgef\u00e4\u00dfe an<br>\n    <strong>Herz-Kreislauf-System<\/strong> = Herz + Blutgef\u00e4\u00dfe = kardiovaskul\u00e4res System<br>\n    <strong>Funktion:<\/strong> O\u2082 + N\u00e4hrstoffe liefern \u00b7 CO\u2082 + Abfallstoffe abtransportieren \u00b7 Hormonproduktion (Regulation Kreislauf + Fl\u00fcssigkeitshaushalt)\n  <\/div>\n\n  <div class=\"two-col\">\n    <div>\n      <h4>Lage im K\u00f6rper<\/h4>\n      <ul style=\"font-size:0.88rem;padding-left:1.2rem;line-height:2;\">\n        <li><strong>Mittleres Mediastinum<\/strong> \u2014 zwischen den Lungen<\/li>\n        <li><strong>\u2154 links<\/strong> der Mittellinie \u00b7 \u2153 rechts<\/li>\n        <li>Herzspitze (<em>Apex Cordis<\/em>) zeigt nach <strong>links unten<\/strong><\/li>\n        <li>Liegt direkt auf dem <strong>Zwerchfell (Diaphragma)<\/strong><\/li>\n        <li>Herzschlag links unter der Brust tastbar (5. ICR)<\/li>\n        <li>Gr\u00f6\u00dfe: ca. <strong>Faustgr\u00f6\u00dfe<\/strong> \u00b7 ~300 g<\/li>\n      <\/ul>\n    <\/div>\n\n    <!-- Lage SVG -->\n    <div>\n      <svg viewBox=\"0 0 230 260\" width=\"100%\" style=\"max-width:220px;display:block;margin:0 auto;background:#fff8f8;border-radius:12px;padding:8px;\">\n        <!-- Brustkorb -->\n        <path d=\"M30 30 Q115 10 200 30 Q225 80 220 200 Q170 240 115 245 Q60 240 10 200 Q5 80 30 30Z\" fill=\"#e8f4fd\" stroke=\"#5dade2\" stroke-width=\"1.5\" stroke-dasharray=\"5,3\" opacity=\"0.7\"\/>\n\n        <!-- Rippen Andeutung -->\n        <path d=\"M40 70 Q115 55 190 70\" stroke=\"#90caf9\" stroke-width=\"1\" fill=\"none\" opacity=\"0.5\"\/>\n        <path d=\"M35 90 Q115 75 195 90\" stroke=\"#90caf9\" stroke-width=\"1\" fill=\"none\" opacity=\"0.5\"\/>\n        <path d=\"M33 110 Q115 95 197 110\" stroke=\"#90caf9\" stroke-width=\"1\" fill=\"none\" opacity=\"0.5\"\/>\n        <path d=\"M32 130 Q115 115 198 130\" stroke=\"#90caf9\" stroke-width=\"1\" fill=\"none\" opacity=\"0.5\"\/>\n\n        <!-- Lunge links -->\n        <path d=\"M20 60 Q50 55 65 80 Q70 130 60 170 Q40 175 25 155 Q15 130 20 60Z\" fill=\"#b3d9f7\" stroke=\"#5dade2\" stroke-width=\"1.5\" opacity=\"0.7\"\/>\n        <text x=\"42\" y=\"115\" text-anchor=\"middle\" font-size=\"9\" fill=\"#1a5276\" font-weight=\"bold\">Lunge<\/text>\n        <text x=\"42\" y=\"127\" text-anchor=\"middle\" font-size=\"8\" fill=\"#1a5276\">(links)<\/text>\n\n        <!-- Lunge rechts -->\n        <path d=\"M210 60 Q180 55 165 80 Q160 130 170 170 Q190 175 205 155 Q215 130 210 60Z\" fill=\"#b3d9f7\" stroke=\"#5dade2\" stroke-width=\"1.5\" opacity=\"0.7\"\/>\n        <text x=\"188\" y=\"115\" text-anchor=\"middle\" font-size=\"9\" fill=\"#1a5276\" font-weight=\"bold\">Lunge<\/text>\n        <text x=\"188\" y=\"127\" text-anchor=\"middle\" font-size=\"8\" fill=\"#1a5276\">(rechts)<\/text>\n\n        <!-- Herz - 2\/3 links -->\n        <path d=\"M85 75 Q95 65 115 70 Q140 65 150 75 Q165 92 160 130 Q155 160 115 178 Q75 160 70 130 Q65 92 85 75Z\" fill=\"#e74c3c\" stroke=\"#c0392b\" stroke-width=\"2.5\"\/>\n        <text x=\"115\" y=\"115\" text-anchor=\"middle\" font-size=\"11\" font-weight=\"bold\" fill=\"white\">Herz<\/text>\n        <text x=\"115\" y=\"128\" text-anchor=\"middle\" font-size=\"8\" fill=\"rgba(255,255,255,0.9)\">(Cor)<\/text>\n\n        <!-- Herzspitze -->\n        <circle cx=\"95\" cy=\"172\" r=\"5\" fill=\"#c0392b\" stroke=\"white\" stroke-width=\"1.5\"\/>\n        <text x=\"64\" y=\"190\" font-size=\"8\" fill=\"#c0392b\" font-weight=\"bold\">Herzspitze<\/text>\n        <text x=\"64\" y=\"200\" font-size=\"7\" fill=\"#c0392b\">(Apex Cordis)<\/text>\n        <line x1=\"88\" y1=\"176\" x2=\"80\" y2=\"192\" stroke=\"#c0392b\" stroke-width=\"1\"\/>\n\n        <!-- Mittellinie -->\n        <line x1=\"115\" y1=\"20\" x2=\"115\" y2=\"250\" stroke=\"#999\" stroke-width=\"1\" stroke-dasharray=\"4,3\"\/>\n        <text x=\"92\" y=\"22\" font-size=\"7\" fill=\"#999\">\u2154 links<\/text>\n        <text x=\"117\" y=\"22\" font-size=\"7\" fill=\"#999\">\u2153 rechts<\/text>\n\n        <!-- Zwerchfell -->\n        <path d=\"M15 195 Q115 182 215 195\" stroke=\"#8b5e3c\" stroke-width=\"2.5\" fill=\"none\"\/>\n        <text x=\"115\" y=\"215\" text-anchor=\"middle\" font-size=\"9\" fill=\"#8b5e3c\" font-weight=\"bold\">Zwerchfell<\/text>\n        <text x=\"115\" y=\"226\" text-anchor=\"middle\" font-size=\"8\" fill=\"#8b5e3c\">(Diaphragma)<\/text>\n\n        <!-- Brustkorb Label -->\n        <text x=\"115\" y=\"248\" text-anchor=\"middle\" font-size=\"8\" fill=\"#1a5276\">Brustkorb (Thorax)<\/text>\n      <\/svg>\n    <\/div>\n  <\/div>\n\n  <div class=\"ntk\">\n    <p>Das Herz ist kein reiner Muskel \u2014 es ist ein <strong>spezialisierter Hohlmuskel<\/strong> (Myokard) aus quergestreifter Herzmuskulatur, die sich <strong>unwillk\u00fcrlich<\/strong> und rhythmisch kontrahiert. Im Gegensatz zur Skelettmuskulatur erm\u00fcdet das Herzmuskelgewebe nicht. Es schl\u00e4gt ca. <strong>100.000-mal t\u00e4glich<\/strong> und pumpt dabei etwa <strong>7.000 Liter Blut<\/strong> pro Tag.<\/p>\n  <\/div>\n<\/div>\n\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     2. HERZANATOMIE\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"anatomie\">\n  <div class=\"num\" style=\"background:var(--red);\">2<\/div>\n  <h2>Herzanatomie \u2014 Aufbau &amp; Hohlr\u00e4ume<\/h2>\n<\/div>\n\n<div class=\"card\">\n  <h3>Innere Struktur des Herzens<\/h3>\n\n  <!-- Herzschnitt SVG -->\n  <div style=\"text-align:center;margin:1rem 0;\">\n    <svg viewBox=\"0 0 620 400\" width=\"100%\" style=\"max-width:600px;display:block;margin:0 auto;background:#fff8f8;border-radius:14px;padding:12px;\">\n\n      <!-- Herzumriss gesamt -->\n      <path d=\"M100 80 Q140 40 200 50 Q260 40 295 80 Q330 40 380 50 Q450 40 490 80 Q530 130 520 240 Q505 330 310 390 Q115 330 100 240 Q90 130 100 80Z\" fill=\"#fde8e8\" stroke=\"#c0392b\" stroke-width=\"2.5\"\/>\n\n      <!-- Septum (Trennwand) -->\n      <path d=\"M310 60 Q308 150 305 240 Q305 310 310 360\" stroke=\"#922b21\" stroke-width=\"3\" fill=\"none\"\/>\n      <text x=\"305\" y=\"220\" text-anchor=\"middle\" font-size=\"9\" fill=\"#922b21\" font-weight=\"bold\">Septum<\/text>\n      <text x=\"305\" y=\"232\" text-anchor=\"middle\" font-size=\"8\" fill=\"#922b21\">(Scheidewand)<\/text>\n\n      <!-- RECHTE SEITE (O2-arm = blau) -->\n      <!-- Rechter Vorhof -->\n      <path d=\"M108 90 Q200 65 302 80 Q305 90 305 155 Q200 160 108 150 Q100 120 108 90Z\" fill=\"#aed6f1\" stroke=\"#2e86c1\" stroke-width=\"2\"\/>\n      <text x=\"205\" y=\"110\" text-anchor=\"middle\" font-size=\"11\" font-weight=\"bold\" fill=\"#1a5276\">Rechter Vorhof<\/text>\n      <text x=\"205\" y=\"123\" text-anchor=\"middle\" font-size=\"9\" fill=\"#1a5276\">(Atrium dextrum)<\/text>\n\n      <!-- Rechte Kammer -->\n      <path d=\"M108 155 Q205 162 302 158 Q308 240 305 340 Q210 370 130 340 Q100 280 108 155Z\" fill=\"#d6eaf8\" stroke=\"#2e86c1\" stroke-width=\"2\"\/>\n      <text x=\"210\" y=\"265\" text-anchor=\"middle\" font-size=\"12\" font-weight=\"bold\" fill=\"#1a5276\">Rechte<\/text>\n      <text x=\"210\" y=\"280\" text-anchor=\"middle\" font-size=\"12\" font-weight=\"bold\" fill=\"#1a5276\">Kammer<\/text>\n      <text x=\"210\" y=\"295\" text-anchor=\"middle\" font-size=\"9\" fill=\"#1a5276\">(Ventriculus dexter)<\/text>\n\n      <!-- LINKE SEITE (O2-reich = rot) -->\n      <!-- Linker Vorhof -->\n      <path d=\"M310 80 Q410 65 505 90 Q512 120 510 150 Q410 160 308 155 Q308 90 310 80Z\" fill=\"#f1948a\" stroke=\"#c0392b\" stroke-width=\"2\"\/>\n      <text x=\"410\" y=\"110\" text-anchor=\"middle\" font-size=\"11\" font-weight=\"bold\" fill=\"#7b1010\">Linker Vorhof<\/text>\n      <text x=\"410\" y=\"123\" text-anchor=\"middle\" font-size=\"9\" fill=\"#7b1010\">(Atrium sinistrum)<\/text>\n\n      <!-- Linke Kammer (dickere W\u00e4nde!) -->\n      <path d=\"M308 158 Q410 162 510 155 Q512 240 505 340 Q405 375 315 350 Q307 280 308 158Z\" fill=\"#e74c3c\" stroke=\"#c0392b\" stroke-width=\"2.5\"\/>\n      <!-- dickere Wand andeuten -->\n      <path d=\"M318 162 Q410 168 502 162 Q504 235 498 335 Q405 368 322 345 Q317 278 318 162Z\" fill=\"#e53935\" opacity=\"0.3\"\/>\n      <text x=\"410\" y=\"265\" text-anchor=\"middle\" font-size=\"12\" font-weight=\"bold\" fill=\"white\">Linke<\/text>\n      <text x=\"410\" y=\"280\" text-anchor=\"middle\" font-size=\"12\" font-weight=\"bold\" fill=\"white\">Kammer<\/text>\n      <text x=\"410\" y=\"295\" text-anchor=\"middle\" font-size=\"9\" fill=\"rgba(255,255,255,0.9)\">(Ventriculus sinister)<\/text>\n      <text x=\"410\" y=\"310\" text-anchor=\"middle\" font-size=\"8\" fill=\"rgba(255,255,255,0.8)\">Dickere Wand!<\/text>\n\n      <!-- HERZKLAPPEN -->\n      <!-- Trikuspidalklappe (rechts, zwischen Vorhof & Kammer) -->\n      <rect x=\"160\" y=\"150\" width=\"100\" height=\"12\" rx=\"4\" fill=\"#f39c12\" stroke=\"#e67e22\" stroke-width=\"1.5\"\/>\n      <text x=\"210\" y=\"175\" text-anchor=\"middle\" font-size=\"8\" fill=\"#e67e22\" font-weight=\"bold\">Trikuspidalklappe<\/text>\n\n      <!-- Pulmonalklappe (rechts, Ausgang) -->\n      <ellipse cx=\"195\" cy=\"85\" rx=\"30\" ry=\"10\" fill=\"#27ae60\" stroke=\"#1e8449\" stroke-width=\"1.5\" opacity=\"0.8\"\/>\n      <text x=\"140\" y=\"72\" font-size=\"8\" fill=\"#1e8449\" font-weight=\"bold\">Pulmonal-<\/text>\n      <text x=\"140\" y=\"82\" font-size=\"8\" fill=\"#1e8449\" font-weight=\"bold\">klappe<\/text>\n\n      <!-- Mitralklappe (links, zwischen Vorhof & Kammer) -->\n      <rect x=\"355\" y=\"150\" width=\"100\" height=\"12\" rx=\"4\" fill=\"#f39c12\" stroke=\"#e67e22\" stroke-width=\"1.5\"\/>\n      <text x=\"408\" y=\"175\" text-anchor=\"middle\" font-size=\"8\" fill=\"#e67e22\" font-weight=\"bold\">Mitralklappe<\/text>\n\n      <!-- Aortenklappe (links, Ausgang) -->\n      <ellipse cx=\"420\" cy=\"85\" rx=\"30\" ry=\"10\" fill=\"#8e44ad\" stroke=\"#6c3483\" stroke-width=\"1.5\" opacity=\"0.8\"\/>\n      <text x=\"453\" y=\"72\" font-size=\"8\" fill=\"#6c3483\" font-weight=\"bold\">Aorten-<\/text>\n      <text x=\"453\" y=\"82\" font-size=\"8\" fill=\"#6c3483\" font-weight=\"bold\">klappe<\/text>\n\n      <!-- GEF\u00c4SSE -->\n      <!-- V. cava superior (rechts oben, blau) -->\n      <rect x=\"155\" y=\"10\" width=\"28\" height=\"55\" rx=\"8\" fill=\"#5dade2\" stroke=\"#2e86c1\" stroke-width=\"2\"\/>\n      <text x=\"132\" y=\"25\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">V. cava<\/text>\n      <text x=\"132\" y=\"36\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">superior<\/text>\n      <defs><marker id=\"a1\" markerWidth=\"5\" markerHeight=\"5\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L5,2.5 L0,5 Z\" fill=\"#2e86c1\"\/><\/marker><\/defs>\n      <line x1=\"169\" y1=\"65\" x2=\"169\" y2=\"88\" stroke=\"#2e86c1\" stroke-width=\"2\" marker-end=\"url(#a1)\"\/>\n\n      <!-- V. cava inferior (rechts unten, blau) -->\n      <rect x=\"155\" y=\"340\" width=\"28\" height=\"50\" rx=\"8\" fill=\"#5dade2\" stroke=\"#2e86c1\" stroke-width=\"2\"\/>\n      <text x=\"128\" y=\"370\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">V. cava<\/text>\n      <text x=\"128\" y=\"381\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">inferior<\/text>\n      <defs><marker id=\"a2\" markerWidth=\"5\" markerHeight=\"5\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L5,2.5 L0,5 Z\" fill=\"#2e86c1\"\/><\/marker><\/defs>\n      <line x1=\"169\" y1=\"340\" x2=\"169\" y2=\"320\" stroke=\"#2e86c1\" stroke-width=\"2\" marker-end=\"url(#a2)\"\/>\n\n      <!-- Truncus pulmonalis (von rechts nach oben, blau) -->\n      <path d=\"M185 65 Q230 15 270 25\" stroke=\"#5dade2\" stroke-width=\"6\" fill=\"none\"\/>\n      <text x=\"195\" y=\"18\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">Truncus<\/text>\n      <text x=\"195\" y=\"28\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">pulmonalis<\/text>\n      <text x=\"195\" y=\"38\" font-size=\"7\" fill=\"#1a5276\" font-style=\"italic\">(\u2192 Lungenarterie)<\/text>\n\n      <!-- Lungenvenen (links, rot) -->\n      <path d=\"M490 120 Q540 100 560 75\" stroke=\"#e74c3c\" stroke-width=\"5\" fill=\"none\"\/>\n      <text x=\"525\" y=\"90\" font-size=\"8\" fill=\"#c0392b\" font-weight=\"bold\">Lungen-<\/text>\n      <text x=\"525\" y=\"101\" font-size=\"8\" fill=\"#c0392b\" font-weight=\"bold\">venen<\/text>\n\n      <!-- Aorta (links, rot, gro\u00df) -->\n      <path d=\"M430 65 Q445 20 480 15 Q510 18 520 40\" stroke=\"#c0392b\" stroke-width=\"7\" fill=\"none\"\/>\n      <text x=\"472\" y=\"12\" font-size=\"9\" fill=\"#c0392b\" font-weight=\"bold\">Aorta<\/text>\n      <defs><marker id=\"a3\" markerWidth=\"6\" markerHeight=\"6\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L6,3 L0,6 Z\" fill=\"#c0392b\"\/><\/marker><\/defs>\n      <line x1=\"520\" y1=\"38\" x2=\"535\" y2=\"55\" stroke=\"#c0392b\" stroke-width=\"2\" marker-end=\"url(#a3)\"\/>\n\n      <!-- Legende -->\n      <rect x=\"15\" y=\"355\" width=\"14\" height=\"14\" rx=\"3\" fill=\"#aed6f1\" stroke=\"#2e86c1\" stroke-width=\"1.5\"\/>\n      <text x=\"33\" y=\"366\" font-size=\"9\" fill=\"#1a5276\">O\u2082-armes Blut<\/text>\n      <rect x=\"15\" y=\"374\" width=\"14\" height=\"14\" rx=\"3\" fill=\"#e74c3c\" stroke=\"#c0392b\" stroke-width=\"1.5\"\/>\n      <text x=\"33\" y=\"385\" font-size=\"9\" fill=\"#7b1010\">O\u2082-reiches Blut<\/text>\n    <\/svg>\n    <p style=\"font-size:0.78rem;color:var(--muted);margin-top:0.4rem;\">Schematischer Herzquerschnitt \u2014 Blau = O\u2082-armes Blut \u00b7 Rot = O\u2082-reiches Blut<\/p>\n  <\/div>\n\n  <h4>Die 4 Herzh\u00f6hlen<\/h4>\n  <table class=\"cell-table th-red\">\n    <tr><th>Herzh\u00f6hle<\/th><th>Seite<\/th><th>Funktion<\/th><th>Blutart<\/th><\/tr>\n    <tr>\n      <td><strong>Rechter Vorhof<\/strong><br><small>Atrium dextrum<\/small><\/td>\n      <td>Rechts<\/td>\n      <td>Sammelt O\u2082-armes Blut aus V. cava superior + inferior (K\u00f6rpervenen)<\/td>\n      <td><span class=\"tag blue\">O\u2082-arm<\/span><\/td>\n    <\/tr>\n    <tr>\n      <td><strong>Rechte Kammer<\/strong><br><small>Ventriculus dexter<\/small><\/td>\n      <td>Rechts<\/td>\n      <td>Pumpt O\u2082-armes Blut \u00fcber Truncus pulmonalis in den <strong>Lungenkreislauf<\/strong><\/td>\n      <td><span class=\"tag blue\">O\u2082-arm<\/span><\/td>\n    <\/tr>\n    <tr>\n      <td><strong>Linker Vorhof<\/strong><br><small>Atrium sinistrum<\/small><\/td>\n      <td>Links<\/td>\n      <td>Sammelt O\u2082-reiches Blut aus den <strong>Lungenvenen<\/strong> (4 St\u00fcck)<\/td>\n      <td><span class=\"tag red\">O\u2082-reich<\/span><\/td>\n    <\/tr>\n    <tr>\n      <td><strong>Linke Kammer<\/strong><br><small>Ventriculus sinister<\/small><\/td>\n      <td>Links<\/td>\n      <td>Pumpt O\u2082-reiches Blut \u00fcber die <strong>Aorta<\/strong> in den K\u00f6rperkreislauf \u00b7 <strong>dickste Wand<\/strong> (ca. 3\u00d7 dicker!)<\/td>\n      <td><span class=\"tag red\">O\u2082-reich<\/span><\/td>\n    <\/tr>\n  <\/table>\n\n  <div class=\"merke\">\n    <span class=\"merke-icon\">\ud83e\udde0<\/span>\n    <span><strong>Eselsbr\u00fccke Herzseiten:<\/strong> <strong>R<\/strong>echts = <strong>R<\/strong>auchige Luft (O\u2082-arm) \u00b7 <strong>L<\/strong>inks = <strong>L<\/strong>ecker sauerstoffreich. Die linke Kammer hat die dickste Wand, weil sie den <strong>gro\u00dfen Kreislauf<\/strong> (ganzer K\u00f6rper) antreibt!<\/span>\n  <\/div>\n\n  <div class=\"ntk\">\n    <p>Das <strong>Septum<\/strong> (Herzscheidewand) hat zwei Abschnitte: <strong>Vorhofseptum<\/strong> (zwischen den Vorh\u00f6fen) und <strong>Kammerseptum<\/strong> (zwischen den Kammern). Beim ungeborenen Kind gibt es noch ein Loch im Vorhofseptum (<em>Foramen ovale<\/em>), das sich nach der Geburt schlie\u00dft. Bleibt es offen, spricht man vom <em>offenen Foramen ovale<\/em> \u2014 h\u00e4ufigster angeborener Herzfehler!<\/p>\n  <\/div>\n<\/div>\n\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     3. HERZKLAPPEN\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"klappen\">\n  <div class=\"num\" style=\"background:var(--orange);\">3<\/div>\n  <h2>Herzklappen \u2014 Die 4 R\u00fcckschlagventile<\/h2>\n<\/div>\n\n<div class=\"card orange\">\n  <h3>Funktion &amp; Lage der Herzklappen<\/h3>\n  <div class=\"def-box\">\n    <strong>Herzklappen<\/strong> = passive R\u00fcckschlagventile \u00b7 verhindern R\u00fcckfluss des Blutes \u00b7 \u00f6ffnen und schlie\u00dfen sich durch Druckunterschiede \u00b7 erzeugen den <strong>Herzton<\/strong> (Lub-Dub)\n  <\/div>\n\n  <div class=\"klappe-grid\">\n    <div class=\"klappe\" style=\"border-color:#e67e22;background:#fff8f0;\">\n      <h5 style=\"color:#ca6f1e;\">\ud83d\udd36 Trikuspidalklappe<\/h5>\n      <p style=\"font-size:0.82rem;\"><strong>Lage:<\/strong> Zwischen rechtem Vorhof und rechter Kammer<br>\n      <strong>Typ:<\/strong> Segelklappe (3 Segel)<br>\n      <strong>Funktion:<\/strong> Verhindert R\u00fcckfluss in den rechten Vorhof bei Kammerkontraktion<\/p>\n    <\/div>\n    <div class=\"klappe\" style=\"border-color:#27ae60;background:#f0fff4;\">\n      <h5 style=\"color:#1e8449;\">\ud83d\udfe2 Pulmonalklappe<\/h5>\n      <p style=\"font-size:0.82rem;\"><strong>Lage:<\/strong> Zwischen rechter Kammer und Truncus pulmonalis<br>\n      <strong>Typ:<\/strong> Taschenklappe (3 Taschen)<br>\n      <strong>Funktion:<\/strong> Verhindert R\u00fcckfluss aus der Lungenarterie in die rechte Kammer<\/p>\n    <\/div>\n    <div class=\"klappe\" style=\"border-color:#e67e22;background:#fff8f0;\">\n      <h5 style=\"color:#ca6f1e;\">\ud83d\udd36 Mitralklappe<\/h5>\n      <p style=\"font-size:0.82rem;\"><strong>Lage:<\/strong> Zwischen linkem Vorhof und linker Kammer<br>\n      <strong>Typ:<\/strong> Segelklappe (2 Segel = Bikuspidalklappe)<br>\n      <strong>Funktion:<\/strong> Verhindert R\u00fcckfluss in den linken Vorhof<\/p>\n    <\/div>\n    <div class=\"klappe\" style=\"border-color:#8e44ad;background:#f8f0ff;\">\n      <h5 style=\"color:#6c3483;\">\ud83d\udfe3 Aortenklappe<\/h5>\n      <p style=\"font-size:0.82rem;\"><strong>Lage:<\/strong> Zwischen linker Kammer und Aorta<br>\n      <strong>Typ:<\/strong> Taschenklappe (3 Taschen)<br>\n      <strong>Funktion:<\/strong> Verhindert R\u00fcckfluss aus der Aorta in die linke Kammer<\/p>\n    <\/div>\n  <\/div>\n\n  <!-- Klappen Schema SVG -->\n  <div style=\"text-align:center;margin:1.2rem 0;\">\n    <svg viewBox=\"0 0 500 140\" width=\"100%\" style=\"max-width:480px;display:block;margin:0 auto;background:#fffaf0;border-radius:12px;padding:10px;\">\n      <!-- Titel -->\n      <text x=\"250\" y=\"16\" text-anchor=\"middle\" font-size=\"10\" fill=\"#ca6f1e\" font-weight=\"bold\">Weg des Blutes durch die Klappen<\/text>\n\n      <!-- Rechter Vorhof -->\n      <rect x=\"10\" y=\"30\" width=\"85\" height=\"40\" rx=\"8\" fill=\"#aed6f1\" stroke=\"#2e86c1\" stroke-width=\"1.5\"\/>\n      <text x=\"52\" y=\"48\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#1a5276\">Rechter<\/text>\n      <text x=\"52\" y=\"59\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#1a5276\">Vorhof<\/text>\n\n      <!-- Trikuspidalklappe -->\n      <rect x=\"97\" y=\"42\" width=\"16\" height=\"16\" rx=\"3\" fill=\"#e67e22\"\/>\n      <text x=\"105\" y=\"53\" text-anchor=\"middle\" font-size=\"7\" fill=\"white\" font-weight=\"bold\">T<\/text>\n      <text x=\"105\" y=\"72\" text-anchor=\"middle\" font-size=\"7\" fill=\"#ca6f1e\">Tri-<\/text>\n      <text x=\"105\" y=\"81\" text-anchor=\"middle\" font-size=\"7\" fill=\"#ca6f1e\">kuspidal<\/text>\n\n      <!-- Rechte Kammer -->\n      <rect x=\"115\" y=\"30\" width=\"85\" height=\"40\" rx=\"8\" fill=\"#d6eaf8\" stroke=\"#2e86c1\" stroke-width=\"1.5\"\/>\n      <text x=\"157\" y=\"48\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#1a5276\">Rechte<\/text>\n      <text x=\"157\" y=\"59\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#1a5276\">Kammer<\/text>\n\n      <!-- Pulmonalklappe -->\n      <rect x=\"202\" y=\"42\" width=\"16\" height=\"16\" rx=\"3\" fill=\"#27ae60\"\/>\n      <text x=\"210\" y=\"53\" text-anchor=\"middle\" font-size=\"7\" fill=\"white\" font-weight=\"bold\">P<\/text>\n      <text x=\"210\" y=\"72\" text-anchor=\"middle\" font-size=\"7\" fill=\"#1e8449\">Pulmo-<\/text>\n      <text x=\"210\" y=\"81\" text-anchor=\"middle\" font-size=\"7\" fill=\"#1e8449\">nal<\/text>\n\n      <!-- Lunge -->\n      <rect x=\"220\" y=\"30\" width=\"60\" height=\"40\" rx=\"8\" fill=\"#e8f5e9\" stroke=\"#27ae60\" stroke-width=\"1.5\"\/>\n      <text x=\"250\" y=\"48\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#1e8449\">Lungen-<\/text>\n      <text x=\"250\" y=\"59\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#1e8449\">kreislauf<\/text>\n\n      <!-- Mitralklappe -->\n      <rect x=\"282\" y=\"42\" width=\"16\" height=\"16\" rx=\"3\" fill=\"#e67e22\"\/>\n      <text x=\"290\" y=\"53\" text-anchor=\"middle\" font-size=\"7\" fill=\"white\" font-weight=\"bold\">M<\/text>\n      <text x=\"290\" y=\"72\" text-anchor=\"middle\" font-size=\"7\" fill=\"#ca6f1e\">Mitral<\/text>\n\n      <!-- Linker Vorhof -->\n      <rect x=\"300\" y=\"30\" width=\"85\" height=\"40\" rx=\"8\" fill=\"#f1948a\" stroke=\"#c0392b\" stroke-width=\"1.5\"\/>\n      <text x=\"342\" y=\"48\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#7b1010\">Linker<\/text>\n      <text x=\"342\" y=\"59\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"#7b1010\">Vorhof<\/text>\n\n      <!-- Aortenklappe -->\n      <rect x=\"387\" y=\"42\" width=\"16\" height=\"16\" rx=\"3\" fill=\"#8e44ad\"\/>\n      <text x=\"395\" y=\"53\" text-anchor=\"middle\" font-size=\"7\" fill=\"white\" font-weight=\"bold\">A<\/text>\n      <text x=\"395\" y=\"72\" text-anchor=\"middle\" font-size=\"7\" fill=\"#6c3483\">Aorten<\/text>\n\n      <!-- Linke Kammer -->\n      <rect x=\"405\" y=\"30\" width=\"85\" height=\"40\" rx=\"8\" fill=\"#e74c3c\" stroke=\"#c0392b\" stroke-width=\"1.5\"\/>\n      <text x=\"447\" y=\"48\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"white\">Linke<\/text>\n      <text x=\"447\" y=\"59\" text-anchor=\"middle\" font-size=\"8\" font-weight=\"bold\" fill=\"white\">Kammer<\/text>\n\n      <!-- Pfeile -->\n      <defs>\n        <marker id=\"aB\" markerWidth=\"5\" markerHeight=\"5\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L5,2.5 L0,5 Z\" fill=\"#555\"\/><\/marker>\n      <\/defs>\n      <line x1=\"95\" y1=\"50\" x2=\"97\" y2=\"50\" stroke=\"#555\" stroke-width=\"1.5\" marker-end=\"url(#aB)\"\/>\n      <line x1=\"200\" y1=\"50\" x2=\"202\" y2=\"50\" stroke=\"#555\" stroke-width=\"1.5\" marker-end=\"url(#aB)\"\/>\n      <line x1=\"280\" y1=\"50\" x2=\"282\" y2=\"50\" stroke=\"#555\" stroke-width=\"1.5\" marker-end=\"url(#aB)\"\/>\n      <line x1=\"385\" y1=\"50\" x2=\"387\" y2=\"50\" stroke=\"#555\" stroke-width=\"1.5\" marker-end=\"url(#aB)\"\/>\n\n      <!-- Herzton Label -->\n      <text x=\"250\" y=\"110\" text-anchor=\"middle\" font-size=\"9\" fill=\"#ca6f1e\" font-weight=\"bold\">1. Herzton (Lub): Segel- u. Trikuspidalklappe schlie\u00dfen sich<\/text>\n      <text x=\"250\" y=\"124\" text-anchor=\"middle\" font-size=\"9\" fill=\"#6c3483\" font-weight=\"bold\">2. Herzton (Dub): Aorten- u. Pulmonalklappe schlie\u00dfen sich<\/text>\n    <\/svg>\n  <\/div>\n\n  <div class=\"ntk\">\n    <ul>\n      <li><strong>Segelklappen<\/strong> (Mitral + Trikuspidal) haben Haltf\u00e4den (<em>Chordae tendineae<\/em>) \u2192 verhindern, dass sie sich umst\u00fclpen<\/li>\n      <li><strong>Taschenklappe<\/strong> (Aorten- + Pulmonalklappe) \u00f6ffnen sich passiv durch Blutdruck<\/li>\n      <li>Klappenfehler: <strong>Stenose<\/strong> = Klappe \u00f6ffnet nicht vollst\u00e4ndig \u00b7 <strong>Insuffizienz<\/strong> = Klappe schlie\u00dft nicht dicht \u2192 Herzger\u00e4usch h\u00f6rbar (Auskultation)<\/li>\n      <li>H\u00e4ufigster Klappenfehler: <strong>Aortenstenose<\/strong> (v.a. bei alten Menschen durch Kalkablagerungen)<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     4. BLUTKREISLAUF\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"kreislauf\">\n  <div class=\"num\" style=\"background:var(--blue);\">4<\/div>\n  <h2>Der doppelte Blutkreislauf<\/h2>\n<\/div>\n\n<div class=\"card blue\">\n  <h3>K\u00f6rper- und Lungenkreislauf<\/h3>\n  <div class=\"def-box\">\n    <strong>Doppelter Blutkreislauf<\/strong> = zwei in Serie geschaltete Kreisl\u00e4ufe \u00b7 <strong>Gro\u00dfer Kreislauf<\/strong> (K\u00f6rperkreislauf) + <strong>Kleiner Kreislauf<\/strong> (Lungenkreislauf) \u00b7 beide laufen gleichzeitig!\n  <\/div>\n\n  <!-- Doppelter Kreislauf SVG -->\n  <div style=\"text-align:center;margin:1rem 0;\">\n    <svg viewBox=\"0 0 560 420\" width=\"100%\" style=\"max-width:540px;display:block;margin:0 auto;background:#f0f8ff;border-radius:14px;padding:12px;\">\n\n      <!-- ===== LINKE SEITE: K\u00d6RPERKREISLAUF (rot) ===== -->\n      <!-- K\u00f6rperkapillaren oben -->\n      <rect x=\"200\" y=\"15\" width=\"160\" height=\"35\" rx=\"10\" fill=\"#fdecea\" stroke=\"#e74c3c\" stroke-width=\"2\"\/>\n      <text x=\"280\" y=\"30\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#c0392b\">K\u00f6rperkapillaren<\/text>\n      <text x=\"280\" y=\"42\" text-anchor=\"middle\" font-size=\"8\" fill=\"#c0392b\">O\u2082-Abgabe \u00b7 CO\u2082-Aufnahme<\/text>\n\n      <!-- Aorta \u2192 Kapillaren -->\n      <line x1=\"380\" y1=\"185\" x2=\"380\" y2=\"32\" stroke=\"#e74c3c\" stroke-width=\"3.5\"\/>\n      <defs><marker id=\"arR\" markerWidth=\"6\" markerHeight=\"6\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L6,3 L0,6 Z\" fill=\"#e74c3c\"\/><\/marker><\/defs>\n      <line x1=\"380\" y1=\"32\" x2=\"360\" y2=\"32\" stroke=\"#e74c3c\" stroke-width=\"3.5\" marker-end=\"url(#arR)\"\/>\n      <text x=\"395\" y=\"100\" font-size=\"8\" fill=\"#c0392b\" font-weight=\"bold\">Aorta<\/text>\n      <text x=\"395\" y=\"112\" font-size=\"7\" fill=\"#c0392b\">(O\u2082-reich)<\/text>\n\n      <!-- K\u00f6rpervenen \u2192 Herz -->\n      <line x1=\"180\" y1=\"32\" x2=\"180\" y2=\"185\" stroke=\"#5dade2\" stroke-width=\"3.5\"\/>\n      <defs><marker id=\"arB\" markerWidth=\"6\" markerHeight=\"6\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L6,3 L0,6 Z\" fill=\"#5dade2\"\/><\/marker><\/defs>\n      <line x1=\"180\" y1=\"185\" x2=\"200\" y2=\"185\" stroke=\"#5dade2\" stroke-width=\"3.5\" marker-end=\"url(#arB)\"\/>\n      <text x=\"140\" y=\"100\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">K\u00f6rper-<\/text>\n      <text x=\"140\" y=\"112\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">venen<\/text>\n      <text x=\"140\" y=\"123\" font-size=\"7\" fill=\"#1a5276\">(O\u2082-arm)<\/text>\n\n      <!-- ===== HERZ IN DER MITTE ===== -->\n      <!-- Herz Gesamt -->\n      <rect x=\"200\" y=\"170\" width=\"160\" height=\"90\" rx=\"14\" fill=\"#fde8e8\" stroke=\"#c0392b\" stroke-width=\"2.5\"\/>\n\n      <!-- Septum -->\n      <line x1=\"280\" y1=\"170\" x2=\"280\" y2=\"260\" stroke=\"#922b21\" stroke-width=\"2\" stroke-dasharray=\"4,2\"\/>\n\n      <!-- Rechte Herzseite (blau) -->\n      <rect x=\"204\" y=\"174\" width=\"72\" height=\"82\" rx=\"10\" fill=\"#d6eaf8\" stroke=\"#2e86c1\" stroke-width=\"1.5\"\/>\n      <text x=\"240\" y=\"208\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#1a5276\">Rechter<\/text>\n      <text x=\"240\" y=\"220\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#1a5276\">Vorhof +<\/text>\n      <text x=\"240\" y=\"232\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#1a5276\">Kammer<\/text>\n      <text x=\"240\" y=\"246\" text-anchor=\"middle\" font-size=\"7\" fill=\"#1a5276\">O\u2082-arm<\/text>\n\n      <!-- Linke Herzseite (rot) -->\n      <rect x=\"284\" y=\"174\" width=\"72\" height=\"82\" rx=\"10\" fill=\"#f1948a\" stroke=\"#c0392b\" stroke-width=\"1.5\"\/>\n      <text x=\"320\" y=\"208\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#7b1010\">Linker<\/text>\n      <text x=\"320\" y=\"220\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#7b1010\">Vorhof +<\/text>\n      <text x=\"320\" y=\"232\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#7b1010\">Kammer<\/text>\n      <text x=\"320\" y=\"246\" text-anchor=\"middle\" font-size=\"7\" fill=\"#7b1010\">O\u2082-reich<\/text>\n\n      <!-- ===== RECHTE SEITE: LUNGENKREISLAUF (blau\u2192rot) ===== -->\n      <!-- Lungenkapillaren -->\n      <rect x=\"200\" y=\"350\" width=\"160\" height=\"40\" rx=\"10\" fill=\"#e8f5e9\" stroke=\"#27ae60\" stroke-width=\"2\"\/>\n      <text x=\"280\" y=\"366\" text-anchor=\"middle\" font-size=\"9\" font-weight=\"bold\" fill=\"#1e8449\">Lungenkapillaren<\/text>\n      <text x=\"280\" y=\"380\" text-anchor=\"middle\" font-size=\"8\" fill=\"#1e8449\">O\u2082-Aufnahme \u00b7 CO\u2082-Abgabe<\/text>\n\n      <!-- Lunge Icons -->\n      <ellipse cx=\"140\" cy=\"370\" rx=\"30\" ry=\"22\" fill=\"#b3d9f7\" stroke=\"#5dade2\" stroke-width=\"1.5\" opacity=\"0.8\"\/>\n      <text x=\"140\" y=\"374\" text-anchor=\"middle\" font-size=\"9\" fill=\"#1a5276\" font-weight=\"bold\">Lunge<\/text>\n      <ellipse cx=\"420\" cy=\"370\" rx=\"30\" ry=\"22\" fill=\"#b3d9f7\" stroke=\"#5dade2\" stroke-width=\"1.5\" opacity=\"0.8\"\/>\n      <text x=\"420\" y=\"374\" text-anchor=\"middle\" font-size=\"9\" fill=\"#1a5276\" font-weight=\"bold\">Lunge<\/text>\n\n      <!-- Lungenarterie (O2-arm, blau, von rechts Kammer) -->\n      <line x1=\"240\" y1=\"260\" x2=\"240\" y2=\"350\" stroke=\"#5dade2\" stroke-width=\"3.5\"\/>\n      <defs><marker id=\"arB2\" markerWidth=\"6\" markerHeight=\"6\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L6,3 L0,6 Z\" fill=\"#5dade2\"\/><\/marker><\/defs>\n      <line x1=\"240\" y1=\"350\" x2=\"240\" y2=\"350\" stroke=\"#5dade2\" stroke-width=\"3.5\" marker-end=\"url(#arB2)\"\/>\n      <text x=\"148\" y=\"300\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">Lungen-<\/text>\n      <text x=\"148\" y=\"311\" font-size=\"8\" fill=\"#1a5276\" font-weight=\"bold\">arterie<\/text>\n      <text x=\"148\" y=\"322\" font-size=\"7\" fill=\"#1a5276\">(O\u2082-arm)<\/text>\n\n      <!-- Lungenvene (O2-reich, rot, zum linken Vorhof) -->\n      <line x1=\"320\" y1=\"350\" x2=\"320\" y2=\"260\" stroke=\"#e74c3c\" stroke-width=\"3.5\"\/>\n      <defs><marker id=\"arR2\" markerWidth=\"6\" markerHeight=\"6\" refX=\"3\" refY=\"3\" orient=\"auto\"><path d=\"M0,0 L6,3 L0,6 Z\" fill=\"#e74c3c\"\/><\/marker><\/defs>\n      <line x1=\"320\" y1=\"260\" x2=\"320\" y2=\"260\" stroke=\"#e74c3c\" stroke-width=\"3.5\" marker-end=\"url(#arR2)\"\/>\n      <text x=\"335\" y=\"300\" font-size=\"8\" fill=\"#c0392b\" font-weight=\"bold\">Lungen-<\/text>\n      <text x=\"335\" y=\"311\" font-size=\"8\" fill=\"#c0392b\" font-weight=\"bold\">vene<\/text>\n      <text x=\"335\" y=\"322\" font-size=\"7\" fill=\"#c0392b\">(O\u2082-reich)<\/text>\n\n      <!-- Labels -->\n      <text x=\"70\" y=\"200\" font-size=\"11\" fill=\"#c0392b\" font-weight=\"bold\" transform=\"rotate(-90,60,215)\">GROSSER KREISLAUF<\/text>\n      <text x=\"482\" y=\"375\" font-size=\"10\" fill=\"#1e8449\" font-weight=\"bold\" transform=\"rotate(-90,482,370)\">KLEINER KREISLAUF<\/text>\n\n      <!-- Legende -->\n      <rect x=\"18\" y=\"385\" width=\"12\" height=\"12\" rx=\"2\" fill=\"#e74c3c\"\/>\n      <text x=\"34\" y=\"395\" font-size=\"8\" fill=\"#c0392b\">O\u2082-reiches Blut<\/text>\n      <rect x=\"18\" y=\"400\" width=\"12\" height=\"12\" rx=\"2\" fill=\"#5dade2\"\/>\n      <text x=\"34\" y=\"410\" font-size=\"8\" fill=\"#1a5276\">O\u2082-armes Blut<\/text>\n    <\/svg>\n  <\/div>\n\n  <div class=\"two-col\">\n    <div>\n      <div style=\"background:#fdecea;border-radius:12px;padding:1rem;border-left:4px solid var(--red);\">\n        <p style=\"font-weight:700;color:var(--red);font-size:0.95rem;\">\ud83d\udd34 Gro\u00dfer Kreislauf (K\u00f6rperkreislauf)<\/p>\n        <p style=\"font-size:0.82rem;margin-top:0.4rem;line-height:1.8;\">\n          <strong>Linke HK<\/strong> \u2192 Aorta \u2192 K\u00f6rperarterien \u2192 Arteriolen \u2192<br>\n          <strong>K\u00f6rperkapillaren<\/strong> (O\u2082-Abgabe, CO\u2082-Aufnahme) \u2192<br>\n          Venolen \u2192 K\u00f6rpervenen \u2192<br>\n          <strong>V. cava superior\/inferior<\/strong> \u2192 Rechter Vorhof\n        <\/p>\n      <\/div>\n    <\/div>\n    <div>\n      <div style=\"background:#e3f2fd;border-radius:12px;padding:1rem;border-left:4px solid var(--lblue);\">\n        <p style=\"font-weight:700;color:var(--blue);font-size:0.95rem;\">\ud83d\udd35 Kleiner Kreislauf (Lungenkreislauf)<\/p>\n        <p style=\"font-size:0.82rem;margin-top:0.4rem;line-height:1.8;\">\n          <strong>Rechte HK<\/strong> \u2192 Lungenarterie \u2192 Lungenarteriolen \u2192<br>\n          <strong>Lungenkapillaren<\/strong> (O\u2082-Aufnahme, CO\u2082-Abgabe) \u2192<br>\n          Lungenvenolen \u2192 <strong>Lungenvenen<\/strong> \u2192<br>\n          Linker Vorhof\n        <\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"ntk\">\n    <ul>\n      <li>Wichtige Ausnahme: In der <strong>Lungenarterie<\/strong> flie\u00dft O\u2082-armes Blut (weg vom Herz) \u2014 trotzdem hei\u00dft es \u201eArterie&#187;! Arterien = immer vom Herz weg, egal welchen O\u2082-Gehalt das Blut hat.<\/li>\n      <li>Die <strong>Pfortader (Vena portae)<\/strong> ist ein besonderer Kreislaufabschnitt: Blut aus dem Darm flie\u00dft zuerst zur Leber zur Entgiftung, bevor es in den allgemeinen Kreislauf gelangt.<\/li>\n      <li>Das Herz selbst wird \u00fcber die <strong>Koronararterien<\/strong> (Herzkranzgef\u00e4\u00dfe) versorgt. Bei Verstopfung \u2192 <strong>Herzinfarkt<\/strong> (Myokardinfarkt).<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     5. BLUTGEF\u00c4SSE\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"gefaesse\">\n  <div class=\"num\" style=\"background:var(--green);\">5<\/div>\n  <h2>Blutgef\u00e4\u00dfe \u2014 Arterien, Venen, Kapillaren<\/h2>\n<\/div>\n\n<div class=\"card green\">\n  <h3>Die 3 Gef\u00e4\u00dftypen im Vergleich<\/h3>\n  <div class=\"def-box\">\n    <strong>Blutgef\u00e4\u00dfe<\/strong> = R\u00f6hrensystem, das das Blut durch den K\u00f6rper leitet \u00b7 Gesamtl\u00e4nge ca. <strong>100.000 km<\/strong> (= 2,5\u00d7 Erdumfang)\n  <\/div>\n\n  <div class=\"gefaess-row\">\n    <div class=\"gefaess\" style=\"border-color:#c0392b;background:#fdecea;\">\n      <div style=\"font-size:2rem;\">\ud83d\udd34<\/div>\n      <h5 style=\"color:var(--red);\">Arterien<\/h5>\n      <ul style=\"font-size:0.82rem;text-align:left;padding-left:1rem;line-height:1.8;\">\n        <li><strong>Richtung:<\/strong> Vom Herz weg<\/li>\n        <li><strong>Druck:<\/strong> Hoher Druck<\/li>\n        <li><strong>Wand:<\/strong> Dicke Muskelschicht<\/li>\n        <li>St\u00fctzen Pumparbeit des Herzens<\/li>\n        <li>Pulsierend (\u2192 Puls tastbar)<\/li>\n        <li>Kein R\u00fcckflussschutz n\u00f6tig<\/li>\n      <\/ul>\n    <\/div>\n    <div class=\"gefaess\" style=\"border-color:#2e86c1;background:#e3f2fd;\">\n      <div style=\"font-size:2rem;\">\ud83d\udd35<\/div>\n      <h5 style=\"color:var(--blue);\">Venen<\/h5>\n      <ul style=\"font-size:0.82rem;text-align:left;padding-left:1rem;line-height:1.8;\">\n        <li><strong>Richtung:<\/strong> Zum Herz hin<\/li>\n        <li><strong>Druck:<\/strong> Niedriger Druck<\/li>\n        <li><strong>Wand:<\/strong> D\u00fcnne Muskelschicht<\/li>\n        <li>Blutfluss passiv + Muskelpumpe<\/li>\n        <li><strong>Venenklappen<\/strong> (R\u00fcckflussschutz!)<\/li>\n        <li>Blutreservoir (~70% des Blutes)<\/li>\n      <\/ul>\n    <\/div>\n    <div class=\"gefaess\" style=\"border-color:#1e8449;background:#e8f5e9;\">\n      <div style=\"font-size:2rem;\">\ud83d\udfe2<\/div>\n      <h5 style=\"color:var(--green);\">Kapillaren<\/h5>\n      <ul style=\"font-size:0.82rem;text-align:left;padding-left:1rem;line-height:1.8;\">\n        <li><strong>\u00dcbergang<\/strong> Arterie \u2194 Vene<\/li>\n        <li>D\u00fcnnste Gef\u00e4\u00dfe (1 Zellschicht!)<\/li>\n        <li>Ort des Gasaustauschs<\/li>\n        <li>O\u2082 + N\u00e4hrstoffe \u2192 Gewebe<\/li>\n        <li>CO\u2082 + Abfallstoffe \u2192 Blut<\/li>\n        <li>W\u00e4nde semi-permeabel<\/li>\n      <\/ul>\n    <\/div>\n  <\/div>\n\n  <!-- Gef\u00e4\u00dfwand Vergleich SVG -->\n  <div style=\"text-align:center;margin:1.2rem 0;\">\n    <svg viewBox=\"0 0 500 160\" width=\"100%\" style=\"max-width:480px;display:block;margin:0 auto;background:#f0fff4;border-radius:12px;padding:10px;\">\n      <text x=\"250\" y=\"15\" text-anchor=\"middle\" font-size=\"10\" fill=\"#1e8449\" font-weight=\"bold\">Wandaufbau der Blutgef\u00e4\u00dfe (Querschnitt)<\/text>\n\n      <!-- Arterie -->\n      <!-- \u00e4u\u00dfere Schicht -->\n      <circle cx=\"90\" cy=\"85\" r=\"50\" fill=\"#ffccbc\" stroke=\"#e64a19\" stroke-width=\"1.5\"\/>\n      <!-- Muskelschicht -->\n      <circle cx=\"90\" cy=\"85\" r=\"36\" fill=\"#ef9a9a\" stroke=\"#c0392b\" stroke-width=\"1.5\"\/>\n      <!-- Innenwand -->\n      <circle cx=\"90\" cy=\"85\" r=\"22\" fill=\"#ffebee\" stroke=\"#e57373\" stroke-width=\"1\"\/>\n      <!-- Lumen -->\n      <circle cx=\"90\" cy=\"85\" r=\"14\" fill=\"#e74c3c\" opacity=\"0.7\"\/>\n      <text x=\"90\" y=\"150\" text-anchor=\"middle\" font-size=\"10\" fill=\"#c0392b\" font-weight=\"bold\">Arterie<\/text>\n      <text x=\"90\" y=\"162\" text-anchor=\"middle\" font-size=\"8\" fill=\"#c0392b\">dicke Muskelwand<\/text>\n\n      <!-- Pfeile Arterie -->\n      <text x=\"35\" y=\"60\" font-size=\"7\" fill=\"#e64a19\">Adventitia<\/text>\n      <line x1=\"55\" y1=\"62\" x2=\"52\" y2=\"68\" stroke=\"#e64a19\" stroke-width=\"0.8\"\/>\n      <text x=\"10\" y=\"88\" font-size=\"7\" fill=\"#c0392b\">Muskularis<\/text>\n      <line x1=\"45\" y1=\"85\" x2=\"53\" y2=\"85\" stroke=\"#c0392b\" stroke-width=\"0.8\"\/>\n      <text x=\"62\" y=\"103\" font-size=\"7\" fill=\"#e57373\">Intima<\/text>\n\n      <!-- Vene -->\n      <circle cx=\"250\" cy=\"85\" r=\"50\" fill=\"#c8e6fb\" stroke=\"#1976d2\" stroke-width=\"1.5\"\/>\n      <circle cx=\"250\" cy=\"85\" r=\"40\" fill=\"#bbdefb\" stroke=\"#1565c0\" stroke-width=\"1\"\/>\n      <circle cx=\"250\" cy=\"85\" r=\"30\" fill=\"#e3f2fd\" stroke=\"#1e88e5\" stroke-width=\"1\"\/>\n      <circle cx=\"250\" cy=\"85\" r=\"20\" fill=\"#5dade2\" opacity=\"0.7\"\/>\n      <text x=\"250\" y=\"150\" text-anchor=\"middle\" font-size=\"10\" fill=\"#1a5276\" font-weight=\"bold\">Vene<\/text>\n      <text x=\"250\" y=\"162\" text-anchor=\"middle\" font-size=\"8\" fill=\"#1a5276\">d\u00fcnnere Wand \u00b7 Klappen<\/text>\n      <!-- Venenklappen -->\n      <path d=\"M235 75 Q250 82 265 75\" stroke=\"#1565c0\" stroke-width=\"2\" fill=\"none\"\/>\n      <path d=\"M235 95 Q250 88 265 95\" stroke=\"#1565c0\" stroke-width=\"2\" fill=\"none\"\/>\n      <text x=\"280\" y=\"83\" font-size=\"7\" fill=\"#1565c0\">Klappe<\/text>\n\n      <!-- Kapillare -->\n      <circle cx=\"420\" cy=\"85\" r=\"22\" fill=\"#fff9c4\" stroke=\"#f9a825\" stroke-width=\"1.5\"\/>\n      <circle cx=\"420\" cy=\"85\" r=\"16\" fill=\"#fffde7\" stroke=\"#fbc02d\" stroke-width=\"1\"\/>\n      <circle cx=\"420\" cy=\"85\" r=\"8\" fill=\"#a5d6a7\" opacity=\"0.8\"\/>\n      <text x=\"420\" y=\"150\" text-anchor=\"middle\" font-size=\"10\" fill=\"#1e8449\" font-weight=\"bold\">Kapillare<\/text>\n      <text x=\"420\" y=\"162\" text-anchor=\"middle\" font-size=\"8\" fill=\"#1e8449\">1 Zellschicht<\/text>\n      <!-- Gasaustausch Pfeile -->\n      <text x=\"380\" y=\"70\" font-size=\"7\" fill=\"#27ae60\">O\u2082\u2192<\/text>\n      <text x=\"380\" y=\"103\" font-size=\"7\" fill=\"#999\">\u2190CO\u2082<\/text>\n    <\/svg>\n  <\/div>\n\n  <div class=\"ntk\">\n    <ul>\n      <li>Venenklappen verhindern den R\u00fcckfluss des Blutes gegen die Schwerkraft (wichtig in den Beinen!). Bei Klappeninsuffizienz \u2192 <strong>Krampfadern (Varizen)<\/strong>.<\/li>\n      <li>Die <strong>Muskelpumpe<\/strong>: Wenn Muskeln sich beim Gehen zusammenziehen, dr\u00fccken sie Venenblut Richtung Herz \u2192 Deshalb ist Bewegung so wichtig f\u00fcr den ven\u00f6sen R\u00fcckfluss!<\/li>\n      <li>Wichtige Arterien: <strong>Aorta<\/strong> (Hauptschlagader) \u00b7 <strong>A. carotis<\/strong> (Halsarterie) \u00b7 <strong>A. femoralis<\/strong> (Oberschenkelarterie) \u00b7 Koronararterien (Herzkranzgef\u00e4\u00dfe)<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     6. VOLLST\u00c4NDIGER BLUTWEG\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"weg\">\n  <div class=\"num\" style=\"background:var(--purple);\">6<\/div>\n  <h2>Vollst\u00e4ndiger Blutweg \u2014 Schritt f\u00fcr Schritt<\/h2>\n<\/div>\n\n<div class=\"card purple\">\n  <h3>Der komplette Weg des Blutes<\/h3>\n\n  <h4 style=\"color:var(--red);\">\ud83d\udd34 Gro\u00dfer Kreislauf (K\u00f6rperkreislauf)<\/h4>\n  <div style=\"background:#fdecea;border-radius:12px;padding:1rem;font-size:0.85rem;line-height:2.2;border:1.5px solid #e57373;\">\n    <span style=\"background:var(--red);color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Linke Herzkammer<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#c0392b;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Aortenklappe<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#e74c3c;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Aorta<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#e74c3c;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">K\u00f6rperarterien<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#e74c3c;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Arteriolen<\/span>\n    <br>\n    <span style=\"color:#999;font-size:1.2rem;\">\u2192 <\/span>\n    <span style=\"background:#27ae60;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">K\u00f6rperkapillaren<\/span>\n    <span style=\"font-size:0.78rem;color:var(--green);\"> (O\u2082-Abgabe + CO\u2082-Aufnahme)<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#2e86c1;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Venolen<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#1a5276;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">K\u00f6rpervenen<\/span>\n    <br>\n    <span style=\"color:#999;font-size:1.2rem;\">\u2192 <\/span>\n    <span style=\"background:#1a5276;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">V. cava sup.\/inf.<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#2e86c1;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Rechter Vorhof<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#ca6f1e;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Trikuspidalklappe<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#2e86c1;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Rechte Kammer<\/span>\n  <\/div>\n\n  <h4 style=\"color:var(--blue);margin-top:1rem;\">\ud83d\udd35 Kleiner Kreislauf (Lungenkreislauf)<\/h4>\n  <div style=\"background:#e3f2fd;border-radius:12px;padding:1rem;font-size:0.85rem;line-height:2.2;border:1.5px solid #90caf9;\">\n    <span style=\"background:#2e86c1;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Rechte Herzkammer<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#27ae60;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Pulmonalklappe<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#5dade2;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Truncus pulmonalis<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#5dade2;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Lungenarterien<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#5dade2;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Lungenarteriolen<\/span>\n    <br>\n    <span style=\"color:#999;font-size:1.2rem;\">\u2192 <\/span>\n    <span style=\"background:#27ae60;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Lungenkapillaren<\/span>\n    <span style=\"font-size:0.78rem;color:var(--green);\"> (CO\u2082-Abgabe + O\u2082-Aufnahme)<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#e74c3c;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Lungenvenolen<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#e74c3c;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Lungenvenen<\/span>\n    <br>\n    <span style=\"color:#999;font-size:1.2rem;\">\u2192 <\/span>\n    <span style=\"background:#c0392b;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Linker Vorhof<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#ca6f1e;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Mitralklappe<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 <\/span>\n    <span style=\"background:#c0392b;color:white;padding:0.1rem 0.5rem;border-radius:4px;font-weight:700;\">Linke Kammer<\/span>\n    <span style=\"color:#999;font-size:1.2rem;\"> \u2192 \ud83d\udd04 (von vorne)<\/span>\n  <\/div>\n\n  <div class=\"merke\" style=\"margin-top:1rem;\">\n    <span class=\"merke-icon\">\ud83e\udde0<\/span>\n    <span><strong>Merkhilfe f\u00fcr die Klappen:<\/strong> <strong>T<\/strong>rotzdem <strong>P<\/strong>umpen <strong>M<\/strong>einen <strong>A<\/strong>ugen = <strong>T<\/strong>rikuspidal \u2192 <strong>P<\/strong>ulmonal \u2192 <strong>M<\/strong>itral \u2192 <strong>A<\/strong>ortenklappe (im Uhrzeigersinn des Blutflusses)<\/span>\n  <\/div>\n\n  <div class=\"ntk\">\n    <ul>\n      <li>Blut braucht f\u00fcr eine vollst\u00e4ndige Runde ca. <strong>60 Sekunden<\/strong> (in Ruhe)<\/li>\n      <li>Die Umlaufzeit sinkt bei k\u00f6rperlicher Belastung auf ~10 Sekunden<\/li>\n      <li><strong>Pfortaderkreislauf<\/strong> (Portalsystem): Darmvenen \u2192 Pfortader \u2192 Leber \u2192 Lebervenolen \u2192 Lebervene (V. hepatica) \u2192 V. cava inferior \u2192 rechter Vorhof. Wichtig: Entgiftung!<\/li>\n      <li>Klinisch wichtig: <strong>Zentralven\u00f6ser Druck (ZVD)<\/strong> = Druck im rechten Vorhof, Normalwert 2\u20138 mmHg. \u00dcberwachung auf Intensivstation.<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     7. LERNKARTEN\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"section-label\" id=\"karten\">\n  <div class=\"num\" style=\"background:var(--accent);color:var(--dark);\">7<\/div>\n  <h2>Lernkarten \u2014 Herz-Kreislaufsystem<\/h2>\n<\/div>\n\n<div class=\"card accent\">\n  <h3 style=\"margin-bottom:0.5rem;\">\ud83c\udccf Antippen = umdrehen!<\/h3>\n  <div class=\"fc-controls\">\n    <button class=\"btn-filter active\" onclick=\"filterCards('all')\">Alle<\/button>\n    <button class=\"btn-filter\" onclick=\"filterCards('anatomie')\">Herzanatomie<\/button>\n    <button class=\"btn-filter\" onclick=\"filterCards('klappen')\">Herzklappen<\/button>\n    <button class=\"btn-filter\" onclick=\"filterCards('kreislauf')\">Kreislauf<\/button>\n    <button class=\"btn-filter\" onclick=\"filterCards('gefaesse')\">Blutgef\u00e4\u00dfe<\/button>\n    <span class=\"fc-count\" id=\"fcCount\"><\/span>\n  <\/div>\n  <div class=\"fc-grid\" id=\"fcGrid\"><\/div>\n<\/div>\n\n<\/main>\n\n<footer>\n  Lernzettel \u00b7 BFS Pflege \u00b7 CE06 \u00b7 Anatomie &#038; Physiologie des Herz-Kreislaufsystems<br>\n  Quelle: Menche, N. (Hrsg): Biologie Anatomie Physiologie. Elsevier GmbH, 9. Auflage 2020\n<\/footer>\n\n<script>\nconst allCards = [\n  \/\/ ANATOMIE\n  { cat:'anatomie', q:'Was ist das Herz?', a:'Hohlmuskel \u00b7 zentrale Pumpe \u00b7 antreibt Bluttransport in allen Gef\u00e4\u00dfen \u00b7 ca. Faustgr\u00f6\u00dfe \u00b7 ~300g' },\n  { cat:'anatomie', q:'Wo liegt das Herz?', a:'Mittleres Mediastinum \u00b7 \u2154 links \/ \u2153 rechts \u00b7 liegt auf dem Zwerchfell \u00b7 Herzspitze (Apex Cordis) zeigt links unten' },\n  { cat:'anatomie', q:'Wie hei\u00dfen die 4 Herzh\u00f6hlen?', a:'Rechter Vorhof \u00b7 Rechte Kammer \u00b7 Linker Vorhof \u00b7 Linke Kammer' },\n  { cat:'anatomie', q:'Was macht der rechte Vorhof?', a:'Sammelt O\u2082-armes Blut aus der V. cava superior und inferior (K\u00f6rpervenen)' },\n  { cat:'anatomie', q:'Was macht die rechte Kammer?', a:'Pumpt O\u2082-armes Blut \u00fcber Truncus pulmonalis \u2192 Lungenkreislauf (kleiner Kreislauf)' },\n  { cat:'anatomie', q:'Was macht der linke Vorhof?', a:'Sammelt O\u2082-reiches Blut aus den 4 Lungenvenen' },\n  { cat:'anatomie', q:'Was macht die linke Kammer?', a:'Pumpt O\u2082-reiches Blut \u00fcber die Aorta in den K\u00f6rperkreislauf (gro\u00dfer Kreislauf) \u00b7 dickste Wand!' },\n  { cat:'anatomie', q:'Warum hat die linke Kammer dickere W\u00e4nde?', a:'Sie muss den gesamten K\u00f6rperkreislauf antreiben (hoher Widerstand) \u2014 ca. 3\u00d7 dicker als rechte Kammer' },\n  { cat:'anatomie', q:'Was ist das Septum?', a:'Herzscheidewand zwischen den H\u00e4lften \u00b7 Vorhofseptum + Kammerseptum' },\n  { cat:'anatomie', q:'Was produziert das Herzgewebe zus\u00e4tzlich?', a:'Hormone, die an der Regulation von Kreislauf und Fl\u00fcssigkeitshaushalt beteiligt sind (z.B. ANP)' },\n\n  \/\/ HERZKLAPPEN\n  { cat:'klappen', q:'Welche 4 Herzklappen gibt es?', a:'Trikuspidalklappe \u00b7 Pulmonalklappe \u00b7 Mitralklappe \u00b7 Aortenklappe' },\n  { cat:'klappen', q:'Wo sitzt die Trikuspidalklappe?', a:'Zwischen rechtem Vorhof und rechter Kammer \u00b7 Segelklappe mit 3 Segeln' },\n  { cat:'klappen', q:'Wo sitzt die Mitralklappe?', a:'Zwischen linkem Vorhof und linker Kammer \u00b7 Segelklappe mit 2 Segeln (= Bikuspidalklappe)' },\n  { cat:'klappen', q:'Wo sitzt die Aortenklappe?', a:'Zwischen linker Kammer und Aorta \u00b7 Taschenklappe mit 3 Taschen' },\n  { cat:'klappen', q:'Wo sitzt die Pulmonalklappe?', a:'Zwischen rechter Kammer und Truncus pulmonalis \u00b7 Taschenklappe mit 3 Taschen' },\n  { cat:'klappen', q:'Was ist der Unterschied Segel- vs. Taschenklappe?', a:'Segelklappe: hat Haltf\u00e4den (Chordae tendineae) \u00b7 verhindert Umst\u00fclpen \u00b7 Taschenklappe: \u00f6ffnet passiv durch Blutdruck, keine Haltf\u00e4den' },\n  { cat:'klappen', q:'Was sind die Herzt\u00f6ne?', a:'1. Herzton (Lub): Segel- u. Trikuspidalklappe schlie\u00dfen sich \u00b7 2. Herzton (Dub): Aorten- u. Pulmonalklappe schlie\u00dfen sich' },\n  { cat:'klappen', q:'Was ist eine Herzklappenstenose?', a:'Klappe \u00f6ffnet nicht vollst\u00e4ndig \u2192 Blutfluss eingeschr\u00e4nkt \u2192 Herzger\u00e4usch \u00b7 erh\u00f6hte Herzarbeit' },\n\n  \/\/ KREISLAUF\n  { cat:'kreislauf', q:'Was ist der gro\u00dfe Kreislauf?', a:'K\u00f6rperkreislauf \u00b7 linke HK \u2192 Aorta \u2192 K\u00f6rper \u2192 V. cava \u2192 rechter Vorhof \u00b7 O\u2082-Versorgung der Organe' },\n  { cat:'kreislauf', q:'Was ist der kleine Kreislauf?', a:'Lungenkreislauf \u00b7 rechte HK \u2192 Lungenarterie \u2192 Lunge \u2192 Lungenvene \u2192 linker Vorhof \u00b7 O\u2082-Beladung des Blutes' },\n  { cat:'kreislauf', q:'Wo findet der Gasaustausch statt?', a:'In den Kapillaren: K\u00f6rperkapillaren (O\u2082 ab, CO\u2082 auf) \u00b7 Lungenkapillaren (CO\u2082 ab, O\u2082 auf)' },\n  { cat:'kreislauf', q:'Welches Blut flie\u00dft in der Lungenarterie?', a:'O\u2082-armes Blut! (Ausnahme: Arterien f\u00fchren normalerweise O\u2082-reiches Blut \u2014 Arterie = immer VOM Herz weg)' },\n  { cat:'kreislauf', q:'Was sind die Hohlvenen?', a:'V. cava superior (obere) + V. cava inferior (untere) \u2192 f\u00fchren O\u2082-armes Blut aus dem K\u00f6rper in den rechten Vorhof' },\n  { cat:'kreislauf', q:'Was ist die Aorta?', a:'Hauptschlagader \u00b7 gr\u00f6\u00dfte Arterie des K\u00f6rpers \u00b7 f\u00fchrt O\u2082-reiches Blut aus der linken Kammer in den K\u00f6rper' },\n  { cat:'kreislauf', q:'Was ist der Pfortaderkreislauf?', a:'Blut aus dem Darm \u2192 Pfortader \u2192 Leber (Entgiftung) \u2192 Lebervene \u2192 V. cava inferior \u2192 rechter Vorhof' },\n\n  \/\/ BLUTGEF\u00c4SSE\n  { cat:'gefaesse', q:'Unterschied Arterie vs. Vene?', a:'Arterie: vom Herz weg \u00b7 dicke Muskelwand \u00b7 pulsierend \u00b7 Vene: zum Herz hin \u00b7 d\u00fcnne Wand \u00b7 Venenklappen \u00b7 niedrigerer Druck' },\n  { cat:'gefaesse', q:'Was sind Kapillaren?', a:'\u00dcbergang zw. Arterie und Vene \u00b7 1 Zellschicht d\u00fcnn \u00b7 Ort des Gasaustauschs \u00b7 O\u2082\/N\u00e4hrstoffe raus, CO\u2082\/Abfall rein' },\n  { cat:'gefaesse', q:'Wozu dienen Venenklappen?', a:'Verhindern R\u00fcckfluss des Blutes gegen die Schwerkraft \u00b7 besonders wichtig in den Beinen' },\n  { cat:'gefaesse', q:'Wie lang sind alle Blutgef\u00e4\u00dfe zusammen?', a:'Ca. 100.000 km = 2,5\u00d7 Erdumfang' },\n  { cat:'gefaesse', q:'Was sind Krampfadern (Varizen)?', a:'Erweiterte, geschl\u00e4ngelte Venen durch insuffiziente Venenklappen \u2192 Blut staut sich in den Beinen' },\n  { cat:'gefaesse', q:'Was sind Koronararterien?', a:'Herzkranzgef\u00e4\u00dfe \u00b7 versorgen das Herzmuskelgewebe selbst mit O\u2082 \u00b7 Verstopfung \u2192 Herzinfarkt' },\n];\n\nconst grid = document.getElementById('fcGrid');\nconst countEl = document.getElementById('fcCount');\n\nfunction renderCards(filter) {\n  const filtered = filter === 'all' ? allCards : allCards.filter(c => c.cat === filter);\n  grid.innerHTML = '';\n  filtered.forEach(c => {\n    const colors = { anatomie:'#7b1010', klappen:'#ca6f1e', kreislauf:'#1a5276', gefaesse:'#1e8449' };\n    const bg = colors[c.cat] || '#1a0505';\n    const fc = document.createElement('div');\n    fc.className = 'fc';\n    fc.innerHTML = `\n      <div class=\"fc-inner\">\n        <div class=\"fc-front\">\n          <div class=\"fc-cat\" style=\"color:${bg};\">${c.cat.toUpperCase()}<\/div>\n          <div class=\"q\">${c.q}<\/div>\n          <div class=\"hint\">\u2192 antippen zum Aufdecken<\/div>\n        <\/div>\n        <div class=\"fc-back\" style=\"background:linear-gradient(135deg,${bg},${bg}cc);\">\n          <div class=\"fc-cat\" style=\"color:rgba(255,255,255,0.6);\">${c.cat.toUpperCase()}<\/div>\n          <div class=\"a\">${c.a}<\/div>\n        <\/div>\n      <\/div>`;\n    fc.addEventListener('click', () => fc.classList.toggle('flipped'));\n    grid.appendChild(fc);\n  });\n  countEl.textContent = `${filtered.length} Karten`;\n}\n\nfunction filterCards(f) {\n  document.querySelectorAll('.btn-filter').forEach(b => {\n    b.classList.remove('active');\n    const label = b.textContent.toLowerCase();\n    if ((f === 'all' && label === 'alle') || label === f) b.classList.add('active');\n  });\n  renderCards(f);\n}\n\nrenderCards('all');\n\ndocument.querySelectorAll('a[href^=\"#\"]').forEach(a => {\n  a.addEventListener('click', e => {\n    e.preventDefault();\n    const el = document.querySelector(a.getAttribute('href'));\n    if (el) el.scrollIntoView({ behavior: 'smooth', block: 'start' });\n  });\n});\n<\/script>\n<\/body>\n<\/html>\n\n\n\n\n<div style=\"text-align: center; margin: 40px 0 20px 0; border-top: 1px solid #eee; padding-top: 20px;\">\n    <button onclick=\"window.history.back()\" style=\"\n        background-color: #2a9d8f; \n        color: white; \n        border: none; \n        padding: 12px 25px; \n        font-size: 16px; \n        font-family: 'Segoe UI', Arial, sans-serif; \n        font-weight: bold; \n        border-radius: 8px; \n        cursor: pointer; \n        transition: all 0.3s ease;\n        display: inline-flex;\n        align-items: center;\n        gap: 10px;\n        box-shadow: 0 4px 6px rgba(0,0,0,0.1);\n    \" onmouseover=\"this.style.backgroundColor='#9bbac5'; this.style.transform='translateY(-2px)';\" \n       onmouseout=\"this.style.backgroundColor='#2a9d8f'; this.style.transform='translateY(0)';\"\n    >\n        <span style=\"font-size: 20px;\">\u2190<\/span> Zur\u00fcck\n    <\/button>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Lernzettel \u2013 Herz-Kreislaufsystem \u2764\ufe0f Definition \ud83e\udec0 Herzanatomie \ud83d\udeaa Herzklappen \ud83d\udd04 Blutkreislauf \ud83e\ude78 Blutgef\u00e4\u00dfe \ud83d\udccd Blutweg \ud83c\udccf Lernkarten BFS Pflege \u00b7 CE06 \u00b7 Anatomie &#038; Physiologie Herz-Kreislaufsystem Vollst\u00e4ndiger Lernzettel mit Diagrammen \u00b7 Herzanatomie \u00b7 Blutkreislauf \u00b7 Klappen \u00b7 Lernkarten \u2764\ufe0fDefinition &#038; Lage \ud83e\udec0Herzanatomie \ud83d\udeaaHerzklappen \ud83d\udd04Blutkreislauf \ud83e\ude78Blutgef\u00e4\u00dfe \ud83d\udccdKompletter Blutweg \ud83c\udccfLernkarten 1 Definition &amp; Lage des Herzens Was&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-646","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=\/wp\/v2\/pages\/646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=646"}],"version-history":[{"count":2,"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=\/wp\/v2\/pages\/646\/revisions"}],"predecessor-version":[{"id":1049,"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=\/wp\/v2\/pages\/646\/revisions\/1049"}],"wp:attachment":[{"href":"https:\/\/generalistik-meistern.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}