Re: What is the largest vein in the human body?

Dear Kathryn,

The largest vein in the human body is the inferior vena cava.  The vena
cava returns blood from the bottom half of your body back to your heart.

For a description of the anatomy of the heart: http://www.ahaf.org/hrtstrok/about/AnatomyHeart.htm

Here is a good site to look at images: http://innerbody.com/htm/body.html

Bonnie