what do you mean by voluntary muscles
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what do you mean by voluntary muscles
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The end of the muscle that is attached to a nonmoving bone is called the origin of the muscle; the end attached to a moving bone is the insertion. As a muscle contracts it becomes shorter and fatter, moving one bone closer to the other. Since a muscle cannot expand, another muscle (the extensor) is required to move the bone in the opposite direction and stretch the first muscle (known as the flexor). The flexor and extensor are described as antagonistic muscles. See illustration.
Explanation:
voluntary muscle (skeletal, striped, or striated muscle) Muscle that is under the control of the will and is generally attached to the skeleton. ... As a muscle contracts it becomes shorter and fatter, moving one bone closer to the other.