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Muscle Contraction and Relaxation
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Muscle Contraction and Relaxation

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Questions and Answers

What is the major constituent of thin filaments in muscle cells?

  • Troponin
  • Actin (correct)
  • Myosin
  • Tropomyosin

    • What type of muscle contraction does not necessarily involve muscle shortening?

  • Isotonic contraction
  • Eccentric contraction
  • Concentric contraction
  • Isometric contraction (correct)

    • What is required for skeletal muscle contractions to be neurogenic?

  • Synaptic input from motor neurons (correct)
  • Synaptic input from sensory neurons
  • Hormonal activation
  • Direct stimulation from the brain

    • Which protein is dominantly present in thick filaments of muscle cells?

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

    What type of muscle contraction can be described depending on the frequency of action potentials?

    <p>All of the above</p> Signup and view all the answers

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