The heart acts as a pump to circulate blood from "summary" of Physics of the Human Body by Richard P. McCall
The heart serves as a crucial organ in the human body, playing a vital role in the circulation of blood throughout the entire system. This process is essential for delivering oxygen and nutrients to various tissues and organs, as well as removing waste products from the body. The heart achieves this by acting as a pump, generating the necessary force to propel blood through the blood vessels. The heart consists of four chambers: two atria located at the top and two ventricles at the bottom. The atria receive blood from the body and lungs, while the ventricles pump blood out to the rest of the body. This coordinated movement ensures that blood flows in the correct direction, preventing any backflow and maintaining efficie...
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