superior vena cava

superior vena cava

noun

Definition of SUPERIOR VENA CAVA

: a vein that is the second largest vein in the human body, is formed by the union of the two brachiocephalic veins at the level of the space between the first two ribs, and returns blood to the right atrium of the heart from the upper half of the body

Illustration of SUPERIOR VENA CAVA