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How does human heart act like pump?

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To understand congenital heart defects, it's helpful to know how a healthy heart works. Your child's heart is a muscle about the size of his or her fist. The heart works like a pump and beats 100,000 times a day.The heart has two sides, separated by an inner wall called the septum. read more

Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the body and pumps it to the lungs. The left side of the heart does the exact opposite: It receives blood from the lungs and pumps it out to the body. read more

The heart pumps blood by the creation of a vortex very similar to a tornado inside the heart. The vortex sucks blood into the left lower chamber (ventricle) and, when it reverses itself, ejects blood out through the aortic valve into the main blood vessel (aorta) for distribution to all parts of the body. read more

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