AP BIOLOGY

Detailed explanation-1: -Your pulmonary arteries carry blood from your heart to your lungs. They’re the only arteries in your body that carry oxygen-poor (deoxygenated) blood. Your main pulmonary artery (pulmonary trunk) leaves your right ventricle at your pulmonary valve.

Detailed explanation-2: -So, pulmonary artery receives deoxygenated blood from right side of heart. This is nature’s design that this blood enters lungs for unloading of carbondioxide and subsequent loading of oxygen can take place. It is true that other than pulmonary artery, all arteries carry oxygenated blood.

Detailed explanation-3: -The pulmonary artery carries deoxygenated blood from the heart to the lungs.

Detailed explanation-4: -The function of the pulmonary arteries is to transport the deoxygenated blood to the lungs where it can be reoxygenated through diffusion. They are still called arteries because they transport blood away from the heart, regardless of whether or not the blood is deoxygenated or oxygenated.

Detailed explanation-5: -The lung veins sometimes referred to as the pulmonary veins, are blood vessels that transfer freshly oxygenated blood from the lungs to the left atria of the heart.