The pulmonary valve is located between the right ventricle and the pulmonary artery. Its main function is to prevent the backflow of blood into the right ventricle when the heart is at rest and to allow deoxygenated blood to flow from the right ventricle through the pulmonary artery into the lungs for oxygenation.

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The Pulmonary Valve

Question 125

Multiple Choice

The pulmonary valve:

A) opens to allow blood to exit the left ventricle and flow into the aorta when the pressure in the left ventricle rises above the pressure in the aorta
B) allows blood to flow from the left atrium into the left ventricle
C) stops the backflow of blood between the right atrium and right ventricle
D) prevents the flow of blood back into the right ventricle and opens to allow deoxygenated blood to flow through the pulmonary artery into the lungs

Correct Answer: