Mastering Multiunit Smooth Muscle Contraction
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Questions and Answers

Which type of muscle cells are not electrically coupled and do not spread contraction from one cell to the next?

  • Multiunit smooth muscle cells (correct)
  • Smooth muscle cells
  • Skeletal muscle cells
  • Cardiac muscle cells
  • What are the stimuli for multiunit smooth muscles?

  • Autonomic nerves
  • Hormones
  • Both autonomic nerves and hormones (correct)
  • None of the above
  • Which neurotransmitter binds to its alpha-1 adrenergic receptor on the pupil dilator muscle to cause pupil dilation?

  • Epinephrine
  • Acetylcholine
  • Norepinephrine (correct)
  • Oxytocin
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