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Kaplan Qbank USMLE



Author8 Posts
  #1

which of the following is a key difference between smooth musclel and skeletal muscle?

a. dependence on ATP for detachment of myosin heads
b. methods for removal of Ca from the cytoplasm
c. enervations of both stimulatory and inhibitory signals
d. the presence of a sarcoplasmic reticulum
e. mechanisms of obtaining ATP (i.e. glycolysis vs. oxidative posphorylation)

  #2

I think "b" is the anwer (method of removing Ca from the cytoplasm)

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  #3

what about A guys.Pls explain

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  #4

answer is c

  #5

what is meant by enervation?


  #6

skeletal muscle-innervation by somatic nervous system

smooth muscle-autonomic nervous system


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  #7

What about A? smooth muscle myosine get attached to actin by phosphorylation through calmodulin dependent kinase while skeletal muscle by Ca induced attachment.

  #8

the answer is c







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