|MadSci Network: Anatomy|
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
Try the links in the MadSci Library for more information on Anatomy.