Which muscle contracts 30 million times a year?
| January 11, 2021 | education
A muscle that can make about 30 million contractions in a year is the heart. The heart muscle consists of a special striated muscle tissue: between the myocytes (muscle cells) there are special bridges that allow you to contract without noticeable fatigue. The muscle layer of the heart is called the myocardium. Its thickness in different chambers of the heart is different, the thickest layer of muscle tissue is in the left ventricle, since the systemic circulation begins from there.
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