BRAIN
SPINAL CORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What arises from sensory neurons in the dorsal root ganglion and contain sensory (afferent) fibers?
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Ventral roots
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Dorsal roots
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The visceral neurons send preganglionic fibers to innervate the visceral organs. All these fibers join the dorsal root fibers distal to the dorsal root ganglion to form the spinal nerve (Figure 3.10).
Detailed explanation-2: -The dorsal root ganglia contain the cell bodies of afferent nerve fibres (those carrying impulses toward the central nervous system); efferent neurons (carrying motor impulses away from the central nervous system) are present in the ventral root ganglia.
Detailed explanation-3: -Background. The sensory neurons and glia of the dorsal root ganglia (DRG) arise from neural crest cells in the developing vertebrate embryo.
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