Multiple Choice
In humans the fetal heart has an opening between the right and left atria, called the foramen ovale.This opening normally closes at birth.Failure of the foramen ovale to close can result in so-called "blue babies" when it is associated with other heart defects.What might explain the babies' bluish appearance?
A) High blood pressure
B) Mixing of blood with different oxygen contents
C) Low metabolic rate
D) Few systemic blood vessels
E) Low blood pressure
Correct Answer:
Verified
Correct Answer:
Verified
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