EVERYDAY SCIENCE

Detailed explanation-1: -Your pulmonary arteries are blood vessels that carry oxygen-poor blood from the right side of your heart to your lungs. In medical terms, the word “pulmonary” means something that affects your lungs. You have one main pulmonary artery, also known as your pulmonary trunk .

Detailed explanation-2: -The main pulmonary arteries emerge from the right side of the heart, and then split into smaller arteries that progressively divide and become arterioles, eventually narrowing into the capillary microcirculation of the lungs where gas exchange occurs.

Detailed explanation-3: -The pulmonary artery is a big artery that comes from the heart. It splits into two main branches, and brings blood from the heart to the lungs. At the lungs, the blood picks up oxygen and drops off carbon dioxide. The blood then returns to the heart through the pulmonary veins.

Detailed explanation-4: -The right pulmonary artery enters the root of the lung and gives off a large branch to the superior lobe of the lung. The main vessel continues through the hilum of the lung, gives off a second (recurrent) branch to the superior lobe, and then divides to supply the middle and inferior lobes.

Detailed explanation-5: -Many smaller blood vessels converge in each of your lungs (right and left) to form a pair of pulmonary veins. Each pair leaves its respective lung through a spot known as the hilum, or root. From there, your pulmonary veins travel to your heart and connect with your left atrium.