Spinal cord horn

From Wikipedia, the free encyclopedia

This article is orphaned as few or no other articles link to it. Please help introduce links in articles on related topics. (November 2006)

Three spinal cord horns are visible in cross-sectional views of the spinal cord: dorsal horn, ventral horn, and the lateral horn (or intermediolateral horn). Each is composed of gray matter, meaning that the horns comprise mostly neuronal and glial cell bodies (but also have axons and dendrites). The dorsal horn is generally associated with sensory neurons, while the neurons of the ventral horn are mostly motor neurons. The lateral horn is only present in certain segments of the spinal cord (thoracic and superior lumbar segments), where it contains neurons innervating limb muscles, preganglionic cell bodies of the autonomic nervous system, and sensory relay neurons.