What does musculoskeletal system includes - Medical Terminology(Adaptive*)

The musculoskeletal system includes muscles, bones, joints, and related structures, such as tendons and connective tissue,that function in the movement of body parts and organs. Muscles have four key functions: producing body movements, stabilizing body positions, storing and moving substances within the body, and generating heat.

Through contraction, muscles cause motion and help maintain body posture. Less apparent motions that muscles are responsible for include the passage and elimination of food through the digestive system, propulsion of blood through the arteries, and contraction of the bladder to eliminate urine. In addition, muscles function in body movements in several different ways to allow a range of motion for the contraction and relaxation of muscle fibers. (See Figure Selected muscles of the body.)

The main function of bones is to form a skeleton to support and protect the body and serve as storage areas for mineral salts, especially calcium and phosphorus. Joints are the places where two bones articulate,or connect. Because bones cannot move without the help of muscles, contraction must be provided by muscle tissue.

Selected muscles of the body. (A) Posterior view. (B) Anterior view.

Selected muscles of the body. (A) Posterior view. (B) Anterior view.

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