Skeletal muscles move and support the
skeleton. They make up fifty percent of your body weight.
There are 640 individually named skeletal muscles. A
skeletal muscle links two bones across its connecting joint.
When these muscles contract or shorten, your bone moves.
Muscles are arranged in layers over the bones. Those nearest
to the skin are called superficial muscles. Those closest to
the inside of the body are called deep muscles. Skeletal
muscles are voluntary muscles. These are muscles that we can
consciously control.
A muscle's name usually describes its
shape, location or job. Some skeletal muscles
are:
frontalis
(forehead)
deltoid (moves shoulder and
upper arm)
biceps
(bends arm)
rectus abdominis
(stomach)
sartorius (bends and turns
leg)
|