ANATOMY

Detailed explanation-1: -Your pulmonary veins are the only veins in your body that carry oxygen-rich blood. All your other veins carry oxygen-poor blood. Similarly, your pulmonary arteries are the only arteries that carry oxygen-poor blood. All the rest of your arteries carry oxygen-rich blood.

Detailed explanation-2: -The pulmonary veins carry oxygenated blood from the lungs to the left atrium.

Detailed explanation-3: -The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.

Detailed explanation-4: -Pulmonary arteries carry deoxygenated blood from the heart to the lungs. This is unlike other arteries which carry oxygenated blood. Similarly, oxygenated blood is carried by the pulmonary vein unlike other veins.