Which cardiovascular changes cause the foramen ovale to close at birth?
A) Increased pressure in the right atrium
B) Increased pressure in the left atrium
C) Decreased blood flow to the left ventricle
D) Changes in the hepatic blood flow

Question

Quizplus · Accepted Answer

At birth, the transition from fetal circulation to adult circulation causes an increase in pressure in the left atrium as a result of increased pulmonary blood flow. This increase in pressure causes the foramen ovale to close, preventing blood from the right atrium from entering the left atrium.

Which Cardiovascular Changes Cause the Foramen Ovale to Close at Birth