What is "inferior vena cava"?

The inferior vena cava is a major blood vessel in the human body that brings deoxygenated blood from the lower extremities and abdominal organs back to the heart. It is the largest vein in the body and plays a crucial role in returning blood to the heart for oxygenation and circulation throughout the body. The inferior vena cava runs alongside the spine, passing through the abdominal and thoracic cavities before reaching the right atrium of the heart. It serves as an important conduit for venous return, ensuring efficient blood flow and proper functioning of the circulatory system.