Musculoskeletal System

Musculoskeletal System

Faith Walker-Heard
June 25, 2012


I am going to describe the steps that the system goes thought from childhood to adulthood to reach the 206 bones. And how the musculoskeletal system changes from bits to adulthood.

The musculoskeletal system has bones joints, muscles. They all have an important function in the body. The formation of the bones is composed of connective tissues called osseous tissues and osteocytes, collagens, and calcium salts. During the fetal development, the bones of the fetus are composed of cartilaginous tissues. It is amole flexible tissue and less dense because of lack of calcium salts in its intercellular spaces. As the embryo develops the process of depositing the calcium salt sates in the soft, cartilaginous tissues occurs and continues thought out the life time of the human. It gradually replaces of cartilage and its intercellular substances by bone cell and calcium deposits are ossification. Osteoclasts are the lager cell that function to reabsorbs or digest, bony tissues. It about the inner sides of the bone and enlarge the inner cavity so that the Bone does not become overly thick and heavy. When a bone beaks osteoblast lays down on the break and the calcium stalls men’s that break. And the osteoclasts smooth’s out the breaks. Osteoblast and Osteoclast work together in all bones thought out the life time of the human, tearing down and rebuilding the bone tissue. This is how the bone handles medical stress and enables it to be a living tissue. The body is constantly rebuilding and renewing itself that is how you get the 206 bones. The formation of the bones depends on the supply of calcium phosphorus. Vitamin D helps calcium top pass thought the intestines and into the bloodstream. Once calcium and phosphorus are in the bones, it makes the bones harden, not only does this makes the bone hard it is stored elsewhere in the body. You have the necessary of the level of calcium in the blood is...

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