MICROANATOMY

Detailed explanation-1: -Together, your superior vena cava and inferior vena cava collect deoxygenated blood from your whole body and bring it back to your heart for new oxygen. This is why the vena cava veins are the largest veins in your body.

Detailed explanation-2: -The vena cava are the two largest veins that carry blood into the right upper chamber of the heart (the right atrium). The superior vena cava carries blood from the brain and arms into the top of the right atrium.

Detailed explanation-3: -The superior vena cava receives deoxygenated blood from all parts of the upper body, while the inferior vena cava receives the venous return from the lower body (including the abdomen). These two large veins both drain into the right atrium of the heart.

Detailed explanation-4: -Vena cava-One of the two great veins that carries deoxygenated blood from the body to the right atrium of the heart.

Detailed explanation-5: -The two largest veins in the body are the superior vena cava, which carries blood from the upper body directly to the right atrium of the heart, and the inferior vena cava, which carries blood from the lower body directly to the right atrium. The inferior vena cava is labeled in the figure below.