Biophysics PHY112: Mechanism of Muscle Contraction Quiz
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Questions and Answers

What is the function of a motor unit?

  • To transmit signals to the brain
  • To produce neurotransmitters
  • To control a group of muscle fibers (correct)
  • To regulate blood flow to the muscles
  • Where are small motor units typically found?

  • Muscles controlling eye movements (correct)
  • Muscles in the back
  • Muscles in the arms
  • Muscles in the legs
  • What is the primary role of the neuromuscular junction?

  • To regulate body temperature during exercise
  • To facilitate communication between the motor neuron and muscle fibers (correct)
  • To produce hormones for muscle growth
  • To store energy for muscle contraction
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