BRAIN
CRANIAL 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: -A cross-sectional view of the spinal cord demonstrates a central butterfly-shaped area of gray matter and peripheral white matter (Fig. 1-7). The central gray matter contains the neural cell bodies. The peripheral white matter contains the axon tracts.
Detailed explanation-3: -The white matter columns of the spinal cord are called funiculi. There is a posterior funiculus, lateral funiculus, and an anterior funiculus.
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