MCAT Biology Question 60: Answer and Explanation

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Question: 60

15. A surgeon accidentally clips a dorsal root ganglion during a spinal surgery. What is a likely consequence of this error?

Loss of motor function at that level

Loss of sensation at that level

Loss of cognitive function

  • A. I only
  • B. II only
  • C. I and II only
  • D. I, II, and III

Correct Answer: B

Explanation:

The dorsal root ganglion contains cell bodies of sensory neurons only. If a dorsal root ganglion is disrupted at a certain level, there will be a loss of sensation at that level.

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