Question

what is the main function of the pulmonary vessels?
a they carry waste to the kidneys.
b they transport hormones that regulate cells and organ behavior.
c they transport blood from the right ventricle to the lungs and back to the left atrium.
d they carry blood from the left ventricle to tissues throughout the body.

Explanation:

Pulmonary vessels include pulmonary arteries and veins. Pulmonary arteries carry de - oxygenated blood from the right ventricle to the lungs for oxygenation, and pulmonary veins carry oxygenated blood from the lungs back to the left atrium.

Answer:

C. They transport blood from the right ventricle to the lungs and back to the left atrium.