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The Muscles

	The muscles are the active part of the apparatus of locomotion. Their task is to move the body. The muscles comprise 40% of the body's weight. The body has 300 individual muscles (musculi) in different shapes and sizes. Enjoy this section on the muscles of the human body.

by Dr. Gary Farr — Last Updated on 1/18/2012

The muscles are the active part of the apparatus of locomotion. Their task is to move the body. The muscles comprise 40% of the body's weight. The body has 300 individual muscles (musculi) in different shapes and sizes. We've done our best to include the major muscles of the ENTIRE body.

by Dr. Gary Farr — Last Updated on 7/22/2003

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by Dr. Gary Farr — Last Updated on 7/22/2003

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by Dr. Gary Farr — Last Updated on 8/24/2003

Spinal muscles are named according to their shape, location, or a combination. They are further categorized according function such as flexion, extension, or rotation. Muscles and ligaments work together to support the spine, hold it upright, and control movement during rest and activity.