Question

each alveolus is surrounded by a web of blood capillaries supplied by the

multiple choice
aorta
pulmonary artery
pulmonary vein
inferior vena cava
superior vena cava

Explanation:

The pulmonary artery carries de - oxygenated blood from the heart to the lungs. Each alveolus is surrounded by a capillary network. The pulmonary artery branches into smaller vessels that supply these capillaries. The aorta carries oxygenated blood from the heart to the rest of the body. The pulmonary vein carries oxygenated blood from the lungs back to the heart. The inferior and superior vena cava carry de - oxygenated blood from the lower and upper parts of the body respectively back to the heart.

Answer:

pulmonary artery