Inferior vena cava
|Inferior vena cava|
|Function:||returns blood from lower body to heart|
|Venous drainage:||Abdomen, pelvis and lower limbs|
|Search for Inferior vena cava in Gray's.|
The inferior vena cava ascends anterior to the vertebral column, to the right of the aorta, from the junction of the two common iliac veins. The renal and hepatic veins are the major other veins that drain into it before it opens into the lower and back part of the right atrium. In adults there is a rudimentary semilunar valve, termed the valve of the inferior vena cava in front of its atrial orifice. This is much more important functionally in the fetus.