Muscular System 3D Model Collection

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Skeletal muscle, with its associated connective tissue, constitutes approximately 40% of body weight. Skeletal muscle is so named because most of the muscles are attached to the skeletal system. It is also called striated muscle because transverse bands, or striations, can be seen in the muscle under the microscope. Skeletal muscle has four major functional characteristics: contractility, excitability, extensibility, and elasticity