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Saturday, September 4, 2010

MUSCULAR SYSTEM

The system in the body composed of muscle cells
and tissues that brings about movement of an organ or body part. There are three kinds of muscle: skeletal muscle, which is
attached to bones and allows the voluntary movement of limbs; smooth muscle, which is found in internal organs
and aids in the involuntary movements that occur in the circulatory, digestive, excretory, reproductive, and respiratory systems; and cardiac muscle, which forms the powerful walls
of the heart.

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