Diffen
Diffen: Arteries vs. Veins
Find out about the basics of arteries and veins with this comparison chart. Then read the article, study the diagrams, and watch the video to learn more about blood vessels.
US National Library of Medicine
Medline Plus: Atherosclerosis
From MedlinePlus, a video tutorial featuring information on Atheriosclerosis with accompanying text.
American Academy of Family Physicians
Family doctor.org: Heart Attack
This article discusses signs and symptoms and prevention measures regarding heart attacks. A short chart is also provided on the risk factors involved in a heart attack.