Pre-Lab Questions For each of the following structures, first indicate its function in the fetus: and then note its fate (what happens to it or what it is converted to after birth). Circle the bl...

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Answer 1

Answer #1

Structure	Function	Fate
Umbilical artery	Supply blood to hind limbs of the fetus	Delivered a few minutes after birth
Umbilical vein	Carry away deoxygenated blood from the fetus through the umbilical cord	After about a week from birth, the umbilical vein is broken down and replaced by the round ligament of the liver
Ductus venosus	Provide oxygenated blood directly to the inferior vena cava of the fetal heart	The structure closes within a few days after birth and remains as ligamentum venosum
Ductus arteriosus	Connects pulmonary artery to the proximal descending aorta	Closes after birth
Foramen ovale	Allow blood to pass directly from right to left atrium in the fetal heart	Closes after birth

Answer 2

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