Sensory System and Ascending Tracts Quiz
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Questions and Answers

What is the main function of the sensory system?

  • To transmit information to the PNS
  • To detect electromagnetic energy
  • To receive information about the self and environment (correct)
  • To convert energy into biochemical energy

What are receptors in the sensory system?

  • Axons extending into the white matter of the spinal cord
  • Biological transducers converting energy into electrochemical energy (correct)
  • Nerve endings detecting energy from the environment
  • Specialized groups of cells transmitting information to the CNS

Where does the action potential transmitted by the sensory neuron travel to?

  • Anterior columns
  • White matter of the spinal cord
  • Dorsal root ganglion (correct)
  • Central gray matter column

What do the dorsal columns of the white matter in the spinal cord exclusively contain?

<p>Ascending tracts transmitting information from the PNS towards the brain (A)</p> Signup and view all the answers

Where do the central processes of the sensory neuron extend to after the dorsal root ganglion?

<p>Dorsal horn of the gray matter in the spinal cord (D)</p> Signup and view all the answers

Where are Meissner's corpuscles primarily responsible for detecting touch located?

<p>In the skin of the fingertips and lips (B)</p> Signup and view all the answers

Which type of receptors are Golgi tendon organs and what is their function?

<p>Proprioceptors; they monitor tension in tendons (D)</p> Signup and view all the answers

Where do the central processes of the 1o sensory neuron extend to after the dorsal root ganglion?

<p>Into the ipsilateral dorsal column of the spinal cord (C)</p> Signup and view all the answers

How are the dorsal column tracts organized in the spinal cord?

<p>Topographically, with fibers from inferiormost levels arranged most medially (D)</p> Signup and view all the answers

Where is the fasciculus cuneatus primarily located in the spinal cord?

<p>In relatively more superior sections of the spinal cord (B)</p> Signup and view all the answers

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