Sensory and motor tracts within the spinal cord
a. are separated into sensory tracts on the right and motor tracts on the left side of the spinal cord
b. have names that indicate the location of the initiation and termination of the nerve impulses
c. they conduct are located in the gray matter
d. all of these choices are correct

b. have names that indicate the location of the initiation and termination of the nerve impulses

Explanation:

The sensory and motor tracts are sets of nerve fibers that run inside the central nervous system; more precisely within the spinal cord and they are named according to the path their fibers have, that is, we will call them indicating from where they begin to where they arrive.

For example, the spinothalamic tract is a sensory tract that carries the sense of touch and pressure from the spinal cord to the thalamus.

On the other hand, corticospinal tracts are linked to isolated and specialized voluntary movements (especially from the distal part of the limbs) and descend from the cerebral cortex to the spinal cord.

As for the other options, I can say that they are incorrect because the tracts do not differ to the right and left of the cord in sensory and motor. Also, the tracts are located in the white substance not in the gray.

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