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Heart - Wikipedia
In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum. [4]
Heart | Structure, Function, Diagram, Anatomy, & Facts ...
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 worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and birds.
Heart: Anatomy & Function - Cleveland Clinic
Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.
Cardiovascular Health Services | Joliet, IL
We stress current and proven innovations in the areas of diagnostic cardiac examination, cardiovascular intervention and surgery, and heart-healthy therapeutic options.
American Heart Association | To be a relentless force for a ...
Learn more about the American Heart Association's efforts to reduce death caused by heart disease and stroke. Also learn about cardiovascular conditions, ECC and CPR, donating, heart disease information for healthcare professionals, caregivers, and educators and healthy living.
Heart Anatomy, Function, and Blood Circulation - WebMD
Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.
How the Heart Works - What the Heart Looks Like | NHLBI, NIH
This image shows the four chambers of the heart and the direction that blood flows through the heart. Oxygen-poor blood, shown in blue-purple, flows into the heart and is pumped out to the lungs.
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