MEDICAL
NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a cross section of the spinal cord, the peripheral ventral white portion consists of ____ forming nerve tracts, and the central gray portion consists of ____, dendrites, and axons.
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Unmyelinated axons, neuron cell bodies
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Myelinated axons, sensory receptors
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Myelinated axons, neuron cell bodies
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Myelinated neurotransmitters, axons
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Explanation:
Detailed explanation-1: -The ventral rootlets from discrete spinal cord section unite and form the ventral root, which contain motor nerve axons from motor and visceral motor neurons.
Detailed explanation-2: -The white matter of the spinal cord is subdivided into dorsal (or posterior), lateral, and ventral (or anterior) columns, each of which contains axon tracts related to specific functions.
Detailed explanation-3: -Sensory neurons have their cell bodies in the spinal (dorsal root) ganglion. Their axons travel through the dorsal root into the gray matter of the cord. Within the gray matter are interneurons with which the sensory neurons may connect.
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