Motor neurons compose which spinal nerve root?
a. Lateral
b. Dorsal
c. Ventral
d. Medial
ANS: C
Each spinal nerve has two roots, which are neurons entering or leaving the spinal cord. The dorsal root is made of sensory neurons that carry impulses into the spinal cord. The dorsal root ganglion is an enlargement of this root that contains the cell bodies of these sensory neurons. The ventral root is the motor root; it is made of motor neurons that carry impulses from the spinal cord to muscles or glands. (Their cell bodies are in the gray matter of the spinal cord.) When the two roots merge, the nerve thus formed is a mixed nerve.
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A) Academics to practitioners B) Consumers to producers C) Journalists to educators D) Mentors to novice nurses
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