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Muscle Fibers, Skeletal

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Definition: Large, multinucleate single cells, either cylindrical or prismatic in shape, that form the basic unit of SKELETAL MUSCLE. They consist of MYOFIBRILS enclosed within and attached to the SARCOLEMMA. They are derived from the fusion of skeletal myoblasts (MYOBLASTS, SKELETAL) into a syncytium, followed by differentiation.  MUSCLE FIBERS, FAST-TWITCH & MUSCLE FIBERS, SLOW-TWITCH are also available   
See Also Myoblasts, Skeletal
Examples Muscle Fibers, Fast-Twitch; Muscle Fibers, Slow-Twitch; Sarcoplasmic Reticulum 		Other names Skeletal Myocyte; Skeletal Muscle Fiber; Myotube; Myocyte, Skeletal; Muscle Fiber, Skeletal; Fibers, Skeletal Muscle; Fiber, Skeletal Muscle; Skeletal Muscle Fibers; Skeletal Myocytes; Myotubes; Myocytes, Skeletal

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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