CLINICAL MEDICINE

Detailed explanation-1: -All the veins carry deoxygenated blood except the pulmonary vein. It carries oxygenated blood from lungs to the heart.

Detailed explanation-2: -All veins are carried deoxygenated blood except the pulmonary vein which carries oxygenated blood from the lungs to the left atrium of the heart. Small vessels are called venules that continue from capillaries, merge to form veins, and drain the blood from capillaries into veins.

Detailed explanation-3: -Your pulmonary veins vary in diameter as they travel from your lungs to your heart. In general, veins gets wider as it approaches your heart. Your left inferior pulmonary vein is the exception to this rule. It starts out wider as it leaves your left lung and gets narrower as it reaches your heart.

Detailed explanation-4: -The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)

Detailed explanation-5: -Veins. Usually carry deoxygenated blood from the body back to the heart. The lumen is large and reduces friction as the blood moves through. The pulmonary vein is the exception as it carries oxygenated blood from the lungs to the heart.