What is a heavy walled vessels which bring blood away from the heart?
The arteries carry blood away from the heart. The first and
largest artery is the aorta.
No. Arteries, which carry blood away from the heart are usually thick walled and round shaped. Veins on the other hand carry blood to the heart and are slightly more thin walled and more elliptical in shape. Capillaries are the smallest of blood vessels and very thin walled. They carry small amounts of blood relative to veins and arteries.