ANATOMY

Detailed explanation-1: -The right ventricle (RV) pumps oxygen-poor blood through the pulmonary valve (PV) into the main pulmonary artery (MPA). From there, the blood flows through the right and left pulmonary arteries into the lungs.

Detailed explanation-2: -A crucial difference is that your pulmonary artery carries oxygen-poor (deoxygenated) blood, while your aorta carries oxygen-rich (oxygenated) blood. In fact, your pulmonary arteries are the only arteries in your body that carry oxygen-poor blood.

Detailed explanation-3: -They carry different types of blood. Your pulmonary arteries carry oxygen-poor blood. Your pulmonary veins carry oxygen-rich blood.

Detailed explanation-4: -The only artery that picks up deoxygenated blood is the pulmonary artery, which runs between the heart and lungs.

Detailed explanation-5: -Blood flows through the tricuspid valve into the right ventricle. It then flows through the pulmonic valve into the pulmonary artery before being delivered to the lungs. While in the lungs, blood diverges into the numerous pulmonary capillaries where it releases carbon dioxide and is replenished with oxygen.