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IMG_0001_NEW - fto_tttlbtgLqqtral core The most prominenr theo;ry of muscle contraction is th{lliding filament theory phis theory suggests

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lextbook. page 8. _lmuscls ccll is a muscle fibe.r. Vithin each.puscllgell/fiber ars manv ryyofibrils P. ach_ mr otjbril consist of a larse arraV of contraSUle Broteins aq4eedieBqatedly in Seqgl- This gir es skeletal muscle its striated pattern of light and dark areas or bands.Each repeated anav of contractile p The nvo major contractile proteins of the sarcomere are actin (thin filament) and .ttyotitt (rhick filament). Myosin has cross-bridges extending
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Unformatted text preview: fto-_tttlbtgLqqtral core. The most prominenr theo;ry of muscle contraction is th{lliding filament theory. phis theory suggests that.folren the muscle is activated, the protruding cross-bridges on myosin attact to actin and, with the aid of ATP, the cross-bridge microstructure can "rotate" thus causins the thin actin filament to "slide" over myosin. This causes the sarcomere to-\ shorten. ,/...
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This note was uploaded on 12/29/2011 for the course KIN 142 taught by Professor Asmundson during the Fall '09 term at Simon Fraser.

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