Complete the following paragraph. The spinal cord has a central region of _____t

Question

Complete the following paragraph. The spinal cord has a central region of _____that includes paired _____, _____, and _____horns. The _____ with contains a _____connects these areas. The gray matter is a processing center for and _____synaptic integration. The white matter of the spinal cord is represented by the paired descending posterior, lateral and anterior _____. It contains _____ (sensory) and _____(motor) tracts. The spinal tracts are named for the respective _____of the fibers. Many of these tracts crossover, or _____to the opposite side of the spinal cord or brainstem.

Explanation / Answer

1) The spinal cord has a central region of grey matter with paired posterior, lateral, and anterior horns. The central canal which contains a gray commissure connects these areas.

2) The gray matter is a processing center for spinal reflexes and synaptic integration

3) The white matter of the spinal cord is represented by paired posterior, lateral, and anterior funiculi (columns), contains ascending (sensory) and descending (motor) tracts

4) The spinal tracts are named for the respective origins and the destinations of the fibers. Many of these tracts crossover, or decussate to the opposite side of the spinal cord or brainstem.

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