Dorsal root ganglion
Dorsal Root Ganglion
The Dorsal Root Ganglion (pronunciation: /ˈdɔːrsəl ruːt ˈɡæŋɡliən/) is a cluster of neuron cell bodies (a ganglion) found in the dorsal root of a spinal nerve.
Etymology
The term "Dorsal Root Ganglion" originates from the Latin words 'dorsum' meaning back, 'radix' meaning root, and 'ganglion' meaning a mass of nerve tissue.
Function
The Dorsal Root Ganglion contains the cell bodies of sensory neurons that bring information from the periphery to the spinal cord. It plays a crucial role in the transmission of sensory information, including pain, temperature, and touch, from the body's periphery to the central nervous system.
Related Terms
- Sensory Neuron: A neuron responsible for converting external stimuli from the organism's environment into internal electrical impulses.
- Spinal Nerve: A mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body.
- Central Nervous System: The part of the nervous system consisting primarily of the brain and spinal cord.
Pathology
Damage or disease affecting the Dorsal Root Ganglion can lead to various neurological disorders, such as neuropathic pain, ganglionitis, and certain types of herpes zoster infections.
External links
- Medical encyclopedia article on Dorsal root ganglion
- Wikipedia's article - Dorsal root ganglion
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