HS2-19 Embryology of the Heart Flashcards
1
Q
Describe the formation of the septum primum.
A
grows from roof of primitive atrium twoard endocardial cushions, which divides left and right atria
2
Q
Describe the formation of the septum secundum.
A
forms as a crescent-shaped structure to the right of the septum primum
overlaps foramen secundum, but a part remains open = foramen ovale
3
Q
When does the septum secundum form?
A
week 5/6
4
Q
What is the function of the aorticopulmonary septum?
A
separate aorta and pulmonary trunk
