Development of Fetal Heart in Human Embryology
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Questions and Answers

What is the role of the epicardium during heart development and repair?

  • Maintaining the heartbeat rhythm
  • Regulating blood flow
  • Contributing to the formation of coronary vessels (correct)
  • Forming the atrioventricular valves

    • What key event occurs during cardiac development after the appearance of two endothelial heart tubes?

  • Formation of atrioventricular and semilunar valves (correct)
  • Appearance of dilatations on the heart tube
  • Development of the arterial end
  • Fusion to form a single heart tube

    • How does cardiac development differ in terms of genetic and environmental causes of cardiac defects?

  • Environmental factors are more prevalent in causing cardiac defects compared to genetic factors
  • Genetic defects are more common than environmental factors in cardiac development
  • Both genetic and environmental causes have equal impact throughout cardiac development
  • Genetic causes play a role in early development, while environmental causes affect later stages (correct)

    • What significant change occurs in fetal circulation after birth?

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