Unformatted text preview: Skeletal Muscle Actions Knowing the muscular organization of each region of the body is crucial in anatomy. With an understanding of where a muscle originates and inserts, you can calculate the movements that will occur at a joint when these two points are brought together following an isotonic muscular contraction. The orientation, placement, and coordination of these muscles allow the human body to produce a wide range of voluntary movements. The muscular system consists of skeletal muscles and their associated connective tissues. It does not include cardiac muscle and smooth muscle, which are associated with the systems in which they are found, such as the cardiovascular, digestive, urinary, or other organ systems. A skeletal muscle is attached to one bone and extends across a joint to attach to another bone. A muscle can also attach a bone to another structure, such as skin. When the muscle contracts, one of muscle can also attach a bone to another structure, such as skin....
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- Spring '10