Question

Give role of each of the following
I pulmonary vein
ii vena cava
iii aorta

Answer 1

i. Pulmonary vein is a large blood vessel which transports oxygenated blood from lungs to the heart.

ii. Vena cava is the vein that brings deoxygenated blood from the body to the heart. There are superior and inferior vena cava, superior vena cava brings the deoxygenated blood from the upper part of the body while inferior vena cava brings deoxygenated blood from the lower part of the body.

iii. Aorta is the largest artery present in the body. It originates from the left ventricle and extends down to the abdomen. The aorta distributes oxygenated blood to all parts of the body.