The rectum is the final portion of the large intestine. It empties stool from the body through the anus. Hemorrhoids are "cushions" of tissue filled with blood vessels at the junction of the rectum and the anus.
Update Date 5/16/2011
Updated by: Todd Eisner, MD, Private practice specializing in Gastroenterology, Boca Raton, FL. Clinical Instructor, Florida Atlantic University School of Medicine. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.