http://sln.fi.edu/TOC.biosci.html
This site is presented in an outline format with a plethora of links to information on the heart. The links are divided into categories such as the structure of the heart, the fluid of the heart and the vessels of the heart. There are text, images and movies on such areas as exercise, healthy eating, drug-free lifestyles, diabetes, bypass surgery, the pulmonary system, how to take your pulse, echocardiograms and more.