Asked by  | 14th Jun, 2008, 05:30: PM

Expert Answer:

Vena cava is either of the two large veins that drain blood from the upper body and from the lower body and pour it into the right atrium of the heart.

The superior vena cava is the large vein which returns blood to the heart from the upper parts of the body such as head, neck and both upper limbs. The inferior vena cava returns blood to the heart from the lower part of the body.

Answered by  | 16th Jun, 2008, 06:51: PM

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