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Muscle - Definition



Definition

Muscles are the tissues of the human body composed of muscle fibers, which contract during body movements.
656 there are muscles in the human body.

There are three types:
  • The heart muscle, which is different from other muscle, especially because it is subject to the influence of hormones, and contracts involuntarily.
  • Smooth muscles, such as those found in the stomach, are voluntary muscles that work without stimulus.
  • Skeletal muscle, they are related to bones and allow the move.


The shape of the muscle is elongated, flat or circular.

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