MICROANATOMY

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. Your main pulmonary artery (pulmonary trunk) leaves your right ventricle at your pulmonary valve.

Detailed explanation-2: -Generally, veins carry deoxygenated blood from the body to the heart, where it can be sent to the lungs. The exception is the network of pulmonary veins, which take oxygenated blood from the lungs to the heart.

Detailed explanation-3: -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.

Detailed explanation-4: -While veins usually carry deoxygenated blood from tissues back to the heart, in this case, pulmonary veins are among the few veins that carry oxygenated blood instead. Oxygenated blood from the lungs is circulated back to the heart through the pulmonary veins that drain into the left atrium.

Detailed explanation-5: -False: Blood returning to the left atrium via the pulmonary veins is deoxygenated blood. While it is true that blood returns to the left atrium via the pulmonary veins, the blood is actually oxygenated (bound with oxygen).