NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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motor nerves
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cranial nerves
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olfactory nerves
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sensory nerves
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Detailed explanation-1: -The spinal nerves (nervi spinales) (Figs. 17-1 and 17-2) usually number 36 pairs in the dog. Each spinal nerve consists of four segments from proximal to distal: (1) roots, (2) main trunk, (3) four primary branches, and (4) numerous peripheral branches (Fig.
Detailed explanation-2: -In the dog, there are 36 pairs of spinal nerves. Each is formed by a dorsal and a ventral root. Each root is formed by rootlets which fan out along each segment of the spinal cord. The dorsal root is formed by axons of afferent neurons (sensory) that have their bodies located at the spinal ganglion.
Detailed explanation-3: -Most of the nerves have both sensory and motor components. Three of the nerves are associated with the special senses of smell, vision, hearing, and equilibrium and have only sensory fibers. Five other nerves are primarily motor in function but do have some sensory fibers for proprioception.