Heart - Wikipedia
https://en.wikipedia.org/wiki/Heart
The heart is a muscular organ in most animals that pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs. 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. In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right Greek: kardía (καρδία) Latin: cor
Greek: kardía (καρδία)
Latin: cor
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