Reflex arcs · Physiology

The motor neuron of a spinal reflex exits the spinal cord through the:

  1. Posterior root
  2. Posterior horn
  3. Anterior root
  4. Dorsal root ganglion
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Correct answer: Anterior root

Motor neurons leave the spinal cord via the anterior root. They carry impulses to the effector muscle.

Difficulty: Medium Question 18 of 20

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