Muscle Physiology Quiz
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Questions and Answers

Which protein is responsible for moving tropomyosin off and exposing binding sites for cross bridge formation and force generation?

  • Tropomyosin
  • Nebulin
  • Titin
  • Troponin (correct)
  • Which structure surrounds myofibrils and is responsible for the storage, release, and uptake of calcium ions?

  • Endomysium
  • Sarcoplasmic reticulum (correct)
  • T-tubule
  • Epimysium
  • What type of muscle fiber differentiation occurs after birth?

  • Hyperplasia
  • Excitability
  • Elasticity
  • Hypertrophy (correct)
  • What is the function of titin in a sarcomere?

    <p>Highly elastic, fixes myosin during stretch</p> Signup and view all the answers

    What is the main component of the regulatory proteins in a sarcomere?

    <p>Troponin</p> Signup and view all the answers

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