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spinal nerve
Nerves emerging from the spinal cord.
Function:
- pairs of spinal nerves form dorsal (sensory) & ventral (motor) roots
Origin:
- dorsal roots have cell bodies in dorsal root ganglion
Course:
- the roots join in the intervertebral foramen
- after joining, the spinal nerve divides into dorsal & ventral rami
* image [3]
Structure:
- a spinal nerve has layers of connective tissue on the outside (epineuriun), around each fascicle (perineurium) & around individual nerve fibers (endoneurium)
* image [2]
Related
dermatome
myotome
Specific
cervical spinal nerve
lumbar spinal nerve
sacral spinal nerve
thoracic spinal nerve
General
peripheral nerve
References
- Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999
- lumen Anatomy & Physiology. Module 12. The Nervous Peripheral Nervous System
Nerve Structure
https://courses.lumenlearning.com/austincc-ap1/chapter/the-peripheral-nervous-system/#m46553-fig-ch13_04_01
- Wikimedia Commons
File:Spinal nerve.svg
https://commons.wikimedia.org/wiki/File%3ASpinal_nerve.svg
Components
dorsal root of spinal nerve
ventral root of spinal nerve
Images
images related to spinal nerve