Sarcoplasmic Reticulum and Muscle Contraction Quiz

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Questions and Answers

Which structure is closely associated with t-tubules to form triads?

  • Terminal cisternae (correct)
  • Sarcoplasmic reticulum
  • Dihydropyridine receptor
  • Myofibril

What is the name of the calcium release channels in the sarcoplasmic reticulum?

  • Sarcoplasmic endoplasmic reticulum calcium ATPase
  • Ca2+-ATPase
  • Dihydropyridine receptors
  • Ryanodine receptors (correct)

What is the name of the pump responsible for re-sequestering intracellular Ca2+ into the sarcoplasmic reticulum?

  • Dihydropyridine receptor
  • Ryanodine receptor
  • Sarcoplasmic endoplasmic reticulum calcium ATPase (correct)
  • Ca2+-ATPase

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