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BMSC207 - Muscle Overview Test with Questions Solved 100% Correct
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BMSC207 - Muscle Overview Test with Questions Solved 100% Correct
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BMSC207 - Muscle Overview Test withQuestions Solved 100% Correct
Skeletal and cardiac activation of cross-bridge cycling - Answer Ca binding to troponin,
removal of interaction block between myosin and actin
Skeletal and cardiac activation of cross-bridge cycling - Answer Ca binding to
calmodulin, activation of MLCK and phosphorylation of myosin light chain
Skeletal termination of contraction - Answer breakdown of ACh, re-uptake of Ca in SR
Smooth termination of contraction - Answer decrease sarcoplasmic Ca, MLCP
Cardiac termination of contraction - Answer repolarization, decrease sarcoplasmic Ca
, Skeletal metabolism - Answer oxidative/glycolytic
Smooth metabolism - Answer dominantly glycolytic
Cardiac metabolism - Answer dominantly oxidative
Skeletal regulation of force - Answer frequency of stimulation and motor
unit summation
Smooth regulation of force - Answer balance of MLCK and MLCP activity
Cardiac regulation of force - Answer regulation of Ca entry
Skeletal contraction speed/energy usage - Answer Fast/20% BMR
Smooth contraction speed/energy usage - Answer Slow/ 1-2% BMR
Cardiac contraction speed/energy usage - Answer INTERMEDIATE/10% BMR
Primary function of muscle - Answer generate force and/or movement in response to
a physiological stimulus
What does the generation of force in muscle depend on? - Answer the conversion of
chemical energy (ATP), and Ca release
Skeletal muscle structure - Answer striated and multinucleated
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