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Muscle Physiology

UCI Physio Test 1

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