Which of the following is not a function of the skeletal muscle?

Skeletal muscles are attached to the bones and are involved in the movement of different parts of the body. They are voluntary muscles as they are controlled by the nervous system in the body. They maintain the posture of the body and provide mechanical support to the internal organs and protect them from external shock or injuries.

The smooth muscles line the inner sides of internal organs, such as the esophagus, stomach, blood vessels, bladder, etc. They are involuntary muscles that perform their functions without relying upon human will, for example, peristalsis of the esophagus.

Thus, peristalsis and other involuntary functions of the body are not the functions of the skeletal muscle.