Skeletal Muscle Structure
Skeletal muscles are composed of a large number of muscle fibers. Each muscle fiber has no one or more nuclei which lie in the periphery. The cytoplasm of the muscle cell is as sarcoplasm. Skeletal muscles are composed primarily of contractile material. Skeletal muscle is a composite tissue of connective tissue, blood vessels, and nerves as well as contractile material, these “minor” tissues may strongly influence muscle function.
Myofibrils are very small parallel filaments which lie in the cytoplasm. The membrane of the muscle fiber is called as sarcolemma. Each muscle fiber is embedded in a connective tissue called endomysium. The fibers within a muscle are arranged in bundles. Each bundle is enclosed in a sheath called perimysium.
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