[8] The heart pumps blood with a rhythm determined by a group of pacemaker cells in the sinoatrial node. These generate an electric.

Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid.

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Heart (band)... Heart is an American rock band formed in Vancouver in 1974. The band evolved from previous projects led by the.

Your heart contains four muscular sections (chambers) that briefly hold blood before moving it. Electrical impulses make.

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective.

Explore the anatomy and core functions of the heart with Innerbody's interactive 3D model.

This image shows the four chambers of the heart and the direction that blood flows through the heart. Oxygen-poor.

Heart keeps cardiologists up to date with important research advances in cardiovascular disease and also provides key educational.

The human heart beats up to 3 billion times over an average lifespan. Learn about the anatomy of the heart and how this.

This page discusses the heart anatomy. Click here to learn everything about the anatomy of the heart, heart valves and.

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