Identification. A. The opening that persists between septum secundum and endocardial cushion. B. This separates the left and right atria in the embryo. C. The innermost layer of the heart wall.
Match the following items. Ductus venosus [Choose ] [Choose ] ✓ Pulmonary artery Blood from ductus venosus Precardinal vein Internal jugular vein Lung bypass Subclavian artery 6th aortic arch Inferior vena cava 7th intersegmental artery
Give the fate of the following structures in the adult: A. Mesonephric ducts in female B. Mesonephric tubules in males C. Right dorsal aorta D. Third aortic arch
Arrange the numbered items in order from anterior to posterior flow. WRITE THE NUMBERS ONLY. 1. Sinus venosus 2. Basilar artery 3. Inferior vena cava 4. Left umbilical vein 5. Ductus venosus