Muscle Spindles and Tendon Organs
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Questions and Answers

Which type of sensory receptors provide the CNS with information concerning degrees of stretch and tension within the musculoskeletal system?

  • Extrafusal fibers
  • Muscle spindles (correct)
  • Tendon organs
  • Intrafusal fibers
  • Which type of muscle fibers have very few myofibrils and can have their nuclei either closely aligned or piled in a central dilation?

  • Intrafusal fibers (correct)
  • Muscle satellite cells
  • Sensory nerve axons
  • Extrafusal fibers
  • What are the afferent sensory and efferent motor nerve fibers associated with the intrafusal fibers?

  • Sensory nerve axons
  • Extrafusal fibers
  • Tendon organs
  • Muscle spindles (correct)
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