THORAX ABDOMEN AND PELVIS

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.

Detailed explanation-2: -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-3: -The bronchial arteries carry oxygenated blood to the lungs at a pressure six times that of the pulmonary arteries. The bronchial arteries provide nourishment to the supporting structures of the lungs, including the pulmonary arteries, but generally do not participate in gas exchange (1, 2).

Detailed explanation-4: -The bronchial arteries arise directly from the aorta or from intercostal arteries to supply the walls of the trachea and bronchi and also to nourish the major pulmonary vessels, nerves, interstitium, and pleura.