DEV2022 – Lecture (Heart)
The heart is the first organ to develop in utero. It is in its fully mature form at 10
Formation of the linear heart tube:
It begins in week 3. We also have 2 aortas developing.
It is the lateral folding that brings the endocardial tubes together in the midline,
so we have 2 tubes at the midline. The fusions of the tubes are broken away by
apoptosis, where we end up with 1 round tube.
Cardinal = drain the head and the trunk
Vitelline = drain the yolk sac
Umbilical = bring oxygenated blood and deoxygenated blood to and from the
Subdivisions of the