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What is spinal cord

What is spinal cord? Which elements constitute the spinal cord?

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The spinal cord is said to be the dorsal neural cord of the vertebrates. It is the portion of the central nervous system which continues in the trunk in order to facilitate the nervous integration of whole body. The spinal cord is formed of the groups of neurons located in central portion forming the gray matter and of axon fibers in its exterior portion forming the white matter. Neural bundles are attatched to both the lateral sides of spinal cord segments in order to form the ventral and dorsal spinal roots that joins in order to make the spinal nerves. The dorsal spinal roots have the ganglion along with the neurons which receive the sensory information; the ventral spinal roots containing motor fibers. Thus, the dorsal roots are sensory roots and the ventral roots are motor roots.

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