Which of these changes does not occur at birth when an infant takes its first breaths?
A)Blood flow to the lungs decreases.
B)The resistance in the pulmonary arteries decreases.
C)Changes in blood flow cause the foramen ovale to close.
D)Air enters the alveoli.
E)Gas diffuses across the alveolar-capillary membrane.

Question

Quizplus · Accepted Answer

At birth, the infant's lungs expand and fill with air, causing an increase in blood flow to the lungs rather than a decrease. This increased blood flow is necessary to bring oxygen to the body's tissues.

Which of These Changes Does Not Occur at Birth When