Sensory Pathways

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1. Which of the following do mechanoreceptors and chemorecptors have in common?

  • The stimulus acts directly on the ion channel
  • The stimulus is the binding of a molecule
  • When unstimulated, the ion channel is closed
  • The ion channel is also the receptor
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2. Where is the VPL nucleus located?

  • Cerebral Cortex
  • Spinal cord
  • Brainstem
  • Thalamus
  • Hypothalamus

3. What is the function of the dorsal horn of the spinal cord?

  • Sensory
  • Motor

4. What effect does an increase in intensity have on action potentials?

  • It increases the intensity of the action potential itself
  • It has no effect
  • It increases the frequency of the action potentials
  • It increases duration of the action potentials

5. Brodmann's areas 1 and 3b recieve information from where?

  • Skin receptors
  • Muscle receptors
  • Joint receptors

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