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Why does the size of the ventral horns of the spinal cord vary along its length?.

Sagot :

The size of the ventral horns is a reflection of the level of skeletal muscle innervation.

Gray matter forms the interior of the spinal cord and is surrounded by white matter, which is a fairly straightforward arrangement . Dorsal (posterior), lateral, and ventral horns are how the grey matter is typically split in transverse slices. The dorsal roots of the spinal nerves carry sensory data to the dorsal horn neurons, which in turn receive that data. Preganglionic visceral motor neurons that project to the sympathetic ganglia are found in the lateral horns, which are mainly found in the thoracic area . The motor neuron cell bodies found in the ventral horns are responsible for sending axons to striated muscles via the ventral roots of spinal nerves.

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