Biology:Nerve fascicle
| Nerve fascicle | |
|---|---|
 Nerve structure | |
| Anatomical terminology |
A nerve fascicle is a bundle of nerve fibers belonging to a nerve in the peripheral nervous system.[1] A nerve fascicle is also called a fasciculus.[2] In the central nervous system, the analogous structures are known as nerve tracts.[3][4]
A nerve fascicle is enclosed by perineurium, a layer of fascial connective tissue.[5] Each nerve fiber in the nerve fascicle is also enclosed by a connective tissue layer of endoneurium. Bundles of nerve fascicles are called fasciculi and are constituents of the nerve trunk of a nerve.[6][1][7] A main nerve trunk may contain a great many fascicles enclosing many thousands of axons (or nerve fibers).[7]
In neuroanatomy, different tracts in the spinal cord are bundled into fasciculi such as the medial longitudinal fasciculus. In the spinal cord, fasciculi are bundled into columns called funiculi such as the anterior funiculus.
See also
References
- ↑ 1.0 1.1 Standring, Susan (2016). Gray's anatomy: the anatomical basis of clinical practice (Forty-first ed.). [Philadelphia]. p. 54. ISBN 978-0-7020-5230-9.
- ↑ "The Peripheral Nervous System | SEER Training". https://training.seer.cancer.gov/anatomy/nervous/organization/pns.html.
- ↑ Purves, Dale; Augustine, George J.; Fitzpatrick, David; Hall, William C.; LaMantia, Anthony-Samuel; McNamara, James O.; White, Leonard E. (2008). Neuroscience (4 ed.). Sinauer Associates. pp. 11–20. ISBN 978-0-87893-697-7. https://archive.org/details/neuroscienceissu00purv.
- ↑ Human Anatomy & Physiology (7th ed.). Pearson. 2007. pp. 388–602. ISBN 978-0-8053-5909-1. https://archive.org/details/humananatomyphys0000mari_r3o8.
- ↑ Bordoni, B; Escher, AR; Tobbi, F; Ducoux, B; Paoletti, S (11 February 2021). "Fascial Nomenclature: Update 2021, Part 2.". Cureus 13 (2). doi:10.7759/cureus.13279. PMID 33604227.
- ↑ "Definition of NERVE TRUNK" (in en). https://www.merriam-webster.com/dictionary/nerve%20trunk.
- ↑ 7.0 7.1 Standring, Susan (2016). Gray's anatomy: the anatomical basis of clinical practice (Forty-first ed.). [Philadelphia]. p. 26. ISBN 978-0-7020-5230-9.
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
- Anatomy photo: nervous/pns/nerve1/nerve3 - Comparative Organology at University of California, Davis - "PNS, nerve (LM, Low)"
- Histology at neurobio.ucla.edu
 |  |
