Function of Vena cava, short explanation?

The vena cava is a large vein that carries deoxygenated blood from the body back to the heart. There are two main vena cavae in the body: the superior vena cava, which carries blood from the upper body, and the inferior vena cava, which carries blood from the lower body. The vena cava plays a crucial role in the circulatory system by returning blood to the heart so that it can be pumped to the lungs to receive oxygen.

The vena cava is a large vein that carries deoxygenated blood from the body back to the heart. There are two vena cavae: the superior vena cava, which drains blood from the upper body, and the inferior vena cava, which drains blood from the lower body. The vena cavae empty into the right atrium of the heart.