fetal circulation

Question 1

____, ____, and ____ exchange occurs at the placenta

Answer 1

nutrient
gas
waste

Question 2

______ and _____ are passively exchanged due to the contraction gradients

Answer 2

oxygen ; carbon dioxide

Question 3

fetal hemoglobin (HbF)

Answer 3

has a high affinity for oxygen than adult hemoglobin which also assists in the transfer (and retention) of oxygen into the fetal circulatory system

Question 4

placenta barrier serves as

Answer 4

immune protection against many pathogens, and antibodies are transferred from mother to child

Question 5

placenta serves

Answer 5

endocrine function, secreting estrogen, progesterone and human chorionic gonadotropin

Question 6

umbilical arteries

Answer 6

carry deoxygenated blood from the fetus to the placenta

Question 7

umbilical vein

Answer 7

carries oxygenated blood from the placenta back to the fetus

Question 8

The fetal circulatory system differ from its adult version by having 3 shunts:

Answer 8

foramen ovale
ductus arteriosus
ductus venosus

Question 9

foramen ovale

Answer 9

connects the right atrium to the left atrium, bypassing the liver

Question 10

ductus arteriosus

Answer 10

connects the pulmonary artery to the aorta, bypassing the liver

Question 11

ductus venosus

Answer 11

connects the umbilical vein to the inferior vena cava, bypassing the liver