muscle fibers

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5 Terms

1
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skeletal muscle: type I (red)

aerobic, oxidative, rich blood supply, numerous mitochondria, slow twitch

2
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skeletal muscle: type IIB (white)

anaerobic, glycolytic, fast twitch

3
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actin (thin filaments) and myosin(thick filaments) must have

some overlap for contraction of the muscle (cross-bridge formation)

4
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tropomyosin

blocks cross bridges

5
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troponin

calcium attachement