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9 Cards in this Set
- Front
- Back
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Muscle hypertrophy normally results from?
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Increased numbers of myofilaments/myofibrils
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The Primary mechanism of treppe?
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residual Ca2+ in the cytosol of muscle cells
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A toxic metabolic product of anaerobic glycolysis in muscle cells?
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lactic acid
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Under resting conditions, the myosin binding sites on actin filaments are blocked by?
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tropomyosin
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Which of the following events occurs first during neuromuscular transmission?
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the presynaptic terminal is depolarized
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Which of the following events occurs last during neuromuscular transmission?
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acetylcholine diffuses across the synaptic cell
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Which of the following is not and energy source stored in muscle cells?
A. ATP B. creatine phosphate C. glucose D. glycogen |
glucose
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Which pathway provides the highest rate of ATP production in muscle cells?
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creatine phosphate dephosphorylation
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Which of the following statements about large motor units is false?
A. they always consist of more muscle fibers than small motor units. B. they often consist of larger muscle fibers thank small motor units. C. they are normally recruited before small motor units. D. none of the above |
C. they are normally recruited before small motor units.
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