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Muscular System - Muscular System Types and Functions of...

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Muscular System Types and Functions of Muscles -Smooth muscle is located in the walls of hollow internal organs and contracts involuntarily. -Cardiac muscle forms the heart wall and contracts involuntarily. -Skeletal muscle runs the entire length of the muscle and contracts voluntarily. Functions of skeletal Muscles -Body support. -Bone movement. -Maintenance of body temperature. (Constrict in times of cold brain senses and you shiver to gain body heat) -Assist movement in cardiovascular and lymphatic vessels. -Protect internal organs. -Stabilize joints. -Cardiac muscle contraction accounts for the heartbeat, delivering blood to the tissues. -Smooth muscle contraction accounts for peristalsis and urination. -Skeletal muscle contraction returns blood to the heart and moves bones, allowing for body movement. Skeletal Muscles of the Body -A whole muscle contains bundles of skeletal muscle fibers, fascicles. -Muscles are covered with fascia that becomes tendons.
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