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9 Cards in this Set
- Front
- Back
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Myofibril
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A structural subset of fibers comprised of repeating units called sarcomeres
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Three types of micorfilaments found in the myofibril
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Thick filament (Myosin tails, myosin heads)
Thin Filaments (Actin molecules) Troponin-Tropomyosin Complex (covers biding sites on actin) |
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Hypertrophy
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Muscle gets larger
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Atrophy
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Muscle gets smaller
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hyperplasia
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Enlargement of organ (smooth muscle) do to an increase in number of cells
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Apoptiosis
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Planned cell death (cell suicide)
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Necrosis
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Unplanned cell death (cell murder)
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Concentric Activation
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Muscle shortens during activity, Tension generated by the muscles is greater than external load
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Eccentric Activation
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Muscle lengthens during activity. Tension is generated bye the muscle is less than the external load.
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