POSTERIOR ROOT Meaning and
Definition
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The posterior root, also referred to as the dorsal root, is a structure found in the spinal cord of vertebrates that plays a critical role in transmitting sensory information from the body to the central nervous system. It is composed of a bundle of nerve fibers or axons that enter the spinal cord at its back or posterior side.
The posterior root extends away from the spinal cord and connects with clusters of neurons known as the dorsal root ganglia. These ganglia are located outside the spinal cord and function as sensory relay stations. They contain cell bodies of sensory neurons, which receive and transmit information related to touch, pain, temperature, and other bodily sensations.
When an external stimulus, such as heat or pressure, is detected by sensory receptors in the body, specific nerve fibers carry this sensory information via nerve impulses towards the spinal cord. These nerve fibers converge within the posterior root and continue their journey towards the central nervous system, ultimately reaching the brain.
Upon reaching the brain, the sensory information is processed and interpreted, allowing individuals to perceive and respond to different sensations according to their location and intensity.
In summary, the posterior root is an anatomical structure consisting of nerve fibers that transmit sensory information from the body to the central nervous system, thereby enabling the perception and interpretation of various sensations.
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Radix posterior, the spinal nerve r. which contains sensory fibers and on which is seated a ganglion.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for POSTERIOR ROOT
- oosterior root
- losterior root
- -osterior root
- 0osterior root
- pisterior root
- pksterior root
- plsterior root
- ppsterior root
- p0sterior root
- p9sterior root
- poaterior root
- pozterior root
- poxterior root
- podterior root
- poeterior root
- powterior root
- posrerior root
- posferior root
- posgerior root
- posyerior root
Etymology of POSTERIOR ROOT
The word "posterior" comes from the Latin word "posterus", meaning "coming after" or "later". The term "root" in anatomy refers to a part that is the beginning or source of something. In the context of anatomy, the "posterior root" refers to the back or rear portion of a nerve root that emerges from the spinal cord.
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