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10 Cards in this Set
- Front
- Back
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What is the smallest functional unit of muscle?
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The sarcomere
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What is the function of tropomyosin?
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Prevents actin cross-bridge binding
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What is the function of troponin?
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Modifies tropomyosin to allow cross-bridge binding
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Troponin function is sensitive to what?
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Changes in calcium level
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A collection of sarcomeres forms what larger unit?
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Myofibril
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How are the myohbrils supplied with calcium?
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Via the T-tubules
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And a collection of myofibrils forms what larger unit?
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The individual muscle fiber
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What structure surrounds individual muscle fibers?
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Endomysium
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What structure surrounds each fascicle?
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Perimysium
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What structure surrounds each muscle bundle?
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Epimysium
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