Term
Interactions of Skeletal Muscles |
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Definition
skeletal muscles work together or in opposition muscles pull together (NEVER push) as muscles shorten, the insertion generally moves toward the origin whatever a muscle (or group of muscles) does, another muscle (or group) "undoes"
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| muscle attachment to stationary bone |
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| muscle attachment to a more movable bone |
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| oppose or reverse a particular movement |
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| synergists that immobilze a bone or muscle's origin |
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Location of muscle shape of muscle relative size of muscle direction of fibers number of origins location of attachment action
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bone or body region associated with the muscle ex. pectoralis major, gluteus |
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rectus-fibers run straight transverse-across oblique-diagonal |
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number of sites to which it is anchored e.g. biceps (2) tripceps (3) |
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| named according to point of origin or insertion |
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flexor or extensor, as in the name of muscles that flex or extend, respectively ex. flexor carpi radialis |
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