| Term 
 | Definition 
 
        | voluntary striated muscle that is usually attached to one or more bones |  | 
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        | Term 
 | Definition 
 
        | alternating light and dark transverse bands |  | 
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        | Term 
 | Definition 
 
        | plasma membrane of a muscle fiber |  | 
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        | Term 
 | Definition 
 
        | cytoplasm of the sarcolemma, it is occupied mainly by long protein bundles called myofibrils. |  | 
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        | Term 
 | Definition 
 
        | long protein bundles of the sarcoplasm |  | 
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        | Term 
 | Definition 
 
        | starch-like carbohydrate that provides energy for the cell during heightened levels of excercise. |  | 
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        | Term 
 | Definition 
 
        | the red pigment that stores oxygen until needed for muscular activity |  | 
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        | Term 
 | Definition 
 
        | several stem cells that fuse to produce each muscle fiber, with each myoblast contributing a nucleus to the mature fiber. |  | 
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        | Term 
 | Definition 
 
        | unspecialized myoblasts between the muscle fiber and endomysium |  | 
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        | Term 
 | Definition 
 
        | the smooth endoplasmic reticulum here, forms a network around each myofibril |  | 
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        | Term 
 | Definition 
 
        | the funtional contractile unit of the muscle fiber. |  | 
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