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UCI Physio Test 1

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Question
Answer
desmin and vimentin   keep sarcomeres in line  
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alpha-actinin   makes up the Z-line  
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costamere dystroglycan complex   laminin, dystroglycan alpha, sarcoglycan, dystroglycan beta, dystrophan (gamma actin to alpha actinin to actin), alpha syntrophin, alpha dystrobrevin, desmin  
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myosin structure   hexameric, 2HC, 2 essential LC, 2 regulatory LC  
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innervation ratio   # of muscle fibers innervated by a single motor neuron  
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Ach receptors   2alpha, beta, gamma, delta; Ach binds to alpha and propagation doesn't work till both alpha's are bound  
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terminal cistaernae   part of sarcoplasmic reticulum near the t-tubule  
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DHPR   dihydropryadine receptors; found on t-tubule; when these open, they open the RyR's  
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SERCA   SR Ca++ ATPase pumps  
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what do SO, FOG, and FG stand for   slow-oxidative, fast-oxidative-glycolytic, and fast glycolytic  
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