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Development of Heart

Development of Heart. …continued…. Questions (SE). Sinus venosus Interatrial septum Interventricular septum Atrial septal defects Ventricular septal defects Fallots tetrology Right atrium. Questions (SA). Bulbus cordis Venous valves Foramen ovale Septum primum

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Development of Heart

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  1. Development of Heart …continued…

  2. Questions (SE) • Sinus venosus • Interatrial septum • Interventricular septum • Atrialseptal defects • Ventricular septal defects • Fallotstetrology • Right atrium

  3. Questions (SA) • Bulbuscordis • Venous valves • Foramen ovale • Septum primum • Septum secundum • AV cushions • Spiral septum • Dextrocardia • Ectopiacordis • Transposition of great vessels • Mesocardium • Heart tubes

  4. Learning objectives • Fate of sinus venosus • Venous valves • Av canals • Interatrial septum • Atria • Spiral septum • Interventricular septum • Ventricles • Semi lunar valves • Conducting system • Pericardial cavity

  5. Time line of events • Partitioning begins 4th week • Partitioning completes 7th week • Critical period 3 – 6 week

  6. Normal Heart

  7. Interior of Heart

  8. Sinus venosus

  9. S.A.Orifice & V. Valves

  10. AV canals

  11. AV valves

  12. Interatrial septum

  13. Right atrium

  14. Left atrium

  15. Tricuspid atresia

  16. Atrialseptaldefect

  17. Atrialseptal defects • Osteumprimum defect • Osteumsecundum defect • Probe patency of Foramen Ovale • Premature closure of Foramen Ovale – hypoplastic left heart/death. • Cortriloculare • Endocardial cushion defect

  18. Atrialseptaldefect closure

  19. Endocardial cushion defect

  20. Ventricles

  21. Ventricular septal defects

  22. GREAT Arteries

  23. GREAT Arteries

  24. Aortico Pulmonary Orifices

  25. Anomalies of Great arteries • Fallotstetrology • Persistent truncusarteriosus • Spiral septum defect • Transposition of great vessels • Transposition of veins

  26. Fallotstetrology • pulmonary stenosis, narrowing of the exit from the right ventricle • ventricular septal defect, a hole between the two ventricles • right ventricular hypertrophy, thickening of the right ventricular muscle • an overriding aorta, which allows blood from both ventricles to enter the aorta

  27. Fallot’stetrology

  28. Dextrocardia

  29. Pericardial cavity

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