The skeletal bones make up more than 200 short, long, irregular, and flat structures. Inside the bones is calcium, phosphorus, magnesium, and RBCs, or marrow, which produces and generate red blood cells. The bones work along side the muscles. The muscles and bones afford support, defense for the internal organs, and locomotion.

The skeletal muscles are our source of mobility, which supports the posture. The muscles work alongside the posture by shortens and tighten it. The bones attach to the muscles via tendons. The muscle then starts to contract with stimulus of muscle fibers via a motor nerve cell, or neuron. The neurons consist of axon, cell bodies, and dendrites, which transport to the nerve impulses and are the essential makeup of our functional components within the larger system of nerves. (Central Nervous System-CNS) CNS is a network or system of nerve cells, fibers, etc, that conveys and transmits sensations to the brain, which carries on to the “motor impulses” and onto the organs and muscles.

Skeletal muscles supply movement for the body and the posture; as well, the skeletal muscles also submit energies to create contractions that form from ATP or adenosine Triphosphate and hydrolysis, ADP or adenosine Diphosphate and finally phosphate.

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