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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.
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.
American Heart Association | To be a relentless force for a ...
Help us create a healthier world free of heart disease and stroke. Since the American Heart Association’s founding in 1924, deaths from cardiovascular diseases have been cut in half. And yet, there are still so many lives to be saved.
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.
How the Heart Works (Animation) - YouTube
In this animation we explain how the human heart works, its function and structure. http://www.thomas-schwenke.me...more
How the Heart Works | Congenital Heart Defects (CHDs) | CDC
Blood is carried through the body in blood vessels called arteries and veins. The process of moving blood through the body is called circulation. Together, the heart and vessels make up the cardiovascular system. The heart has four chambers (two atria and two ventricles).
Heart disease - Symptoms and causes - Mayo Clinic
Learn about symptoms, causes and treatment of cardiovascular disease, a term describing a wide range of conditions that can affect the heart.
Heart Anatomy: Diagram, Blood Flow and Functions - MedicineNet
Learn about the heart's anatomy, how it functions, blood flow through the heart and lungs, its location, artery appearance, and how it beats.
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