Muscular System Essay

594 words - 2 pages

The Muscular systemThe muscular system is responsible for the human body it is made up of over 700 named muscles. In the body they do everything from pumping blood to moving food through intestines, to helping lifting heavy objects. It is made up of voluntary and involuntary muscles, skeletal, visceral, and cardiac muscles, blood vessels, tendons and nerves.Http://www.innebody.com/image/musfov.htmlVoluntary muscles are muscles that you have conscious control over them. They are also known as skeletal muscles. Involuntary muscles are muscles you have no control over your brain and body tell these muscles what to do. They are also known as smooth muscles because they are under control of the autonomic nervous system.Medical Terminology For Health ProfessionsSkeletal muscles are the largest quantity muscles in the body it is the only type of voluntary muscle tissue it is also known as striated muscles because under a microscope the light and dark bands in the muscle fibers create a striped appearance the word striated means striped skeletal muscles are made up of thousands of cylindrical type muscle fibers the fibers are bounded together by connective tissue the function of skeletal muscle is to contract to move parts of the body closer to the bone most skeletal muscles are attached to two bones by tendons muscles move by shortening their length, pulling on tendons, and moving bones closer to each other a single skeletal muscle such as triceps is attached to a large area of bone such as the hummers it is the bone at the upper part of the arm at its other end the insertion it tapers into a tendon a tendon is a flexible cord of strong fibrous collagen tissue attaching a muscle to a bone the ulna is one of the bones of the lower part of the arm as the triceps contracts the insertion is pulled toward...

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