The muscles of the body
There is over 650 muscles in the body. The muscles of the musculoskeletal system are all volentairy muscles meaning that you have the power to control the movement of these muscles. These muscles are located around the skeleton to protect all the bones. MUscles usually account for about 40% of a person's overall body weight.
Click the links below to see a few videos on the muscles of the musculoskeletal system:
http://www.youtube.com/watch?v=pbTah5NVOtU
http://www.youtube.com/watch?v=pbTah5NVOtU