Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns ...

Locate the vessels entering and leaving the heart and the 2 heart chambers - atrium and ventricle. Look at diagram of blood flow through the heart - Figure 10.9 on page 97 of lab manual. Next, follow ...

All blood vessels are specifically ... at high pressure as it leaves the heart; the largest artery is the aorta Contain valves to prevent back flow of blood Walls are made of semi-permeable ...

Originally appeared on the NOVA Web site Cut to the Heart. Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and ...

All blood vessels are specifically ... at high pressure as it leaves the heart; the largest artery is the aorta Contain valves to prevent back flow of blood Walls are made of semi-permeable ...