Trigeminal ganglion

Jump to navigation Jump to search

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


Overview

Template:Infobox Nerve

WikiDoc Resources for Trigeminal ganglion

Articles

Most recent articles on Trigeminal ganglion

Most cited articles on Trigeminal ganglion

Review articles on Trigeminal ganglion

Articles on Trigeminal ganglion in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Trigeminal ganglion

Images of Trigeminal ganglion

Photos of Trigeminal ganglion

Podcasts & MP3s on Trigeminal ganglion

Videos on Trigeminal ganglion

Evidence Based Medicine

Cochrane Collaboration on Trigeminal ganglion

Bandolier on Trigeminal ganglion

TRIP on Trigeminal ganglion

Clinical Trials

Ongoing Trials on Trigeminal ganglion at Clinical Trials.gov

Trial results on Trigeminal ganglion

Clinical Trials on Trigeminal ganglion at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Trigeminal ganglion

NICE Guidance on Trigeminal ganglion

NHS PRODIGY Guidance

FDA on Trigeminal ganglion

CDC on Trigeminal ganglion

Books

Books on Trigeminal ganglion

News

Trigeminal ganglion in the news

Be alerted to news on Trigeminal ganglion

News trends on Trigeminal ganglion

Commentary

Blogs on Trigeminal ganglion

Definitions

Definitions of Trigeminal ganglion

Patient Resources / Community

Patient resources on Trigeminal ganglion

Discussion groups on Trigeminal ganglion

Patient Handouts on Trigeminal ganglion

Directions to Hospitals Treating Trigeminal ganglion

Risk calculators and risk factors for Trigeminal ganglion

Healthcare Provider Resources

Symptoms of Trigeminal ganglion

Causes & Risk Factors for Trigeminal ganglion

Diagnostic studies for Trigeminal ganglion

Treatment of Trigeminal ganglion

Continuing Medical Education (CME)

CME Programs on Trigeminal ganglion

International

Trigeminal ganglion en Espanol

Trigeminal ganglion en Francais

Business

Trigeminal ganglion in the Marketplace

Patents on Trigeminal ganglion

Experimental / Informatics

List of terms related to Trigeminal ganglion

The trigeminal ganglion (or Gasserian ganglion, or semilunar ganglion) is a sensory ganglion of the trigeminal nerve which occupies a cavity (Meckel's cave) in the dura mater covering the trigeminal impression near the apex of the petrous part of the temporal bone.

Relations

It is somewhat crescentic in shape, with its convexity directed forward: medially, it is in relation with the internal carotid artery and the posterior part of the cavernous sinus.

The motor root runs in front of and medial to the sensory root, and passes beneath the ganglion; it leaves the skull through the foramen ovale, and, immediately below this foramen, joins the mandibular nerve.

The greater superficial petrosal nerve lies also underneath the ganglion.

The ganglion receives, on its medial side, filaments from the carotid plexus of the sympathetic.

It give off minute branches to the tentorium cerebelli, and to the dura mater in the middle fossa of the cranium.

From its convex border, which is directed forward and lateralward, three large nerves proceed, viz., the ophthalmic, maxillary, and mandibular.

The ophthalmic and maxillary consist exclusively of sensory fibers; the mandibular is joined outside the cranium by the motor root.

Clinical significance

After recovery from a primary herpes infection, the virus is not cleared from the body, but rather lies dormant in a non-replicating state within the trigeminal ganglion.[1] Thus, herpes zoster may follow from chickenpox.

Rodent

In rodent, the trigeminal ganglion is important as it is the first part of the pathway from the whiskers to the brain. Cell bodies of the whisker primary afferents are found here. These afferents are mechanoreceptor cells which fire in response to whisker deflection.

There are around 26,000-43,000 cell bodies in rodent Trigeminal ganglion. Is is possible that there are two distinct (or perhaps continuous) populations of cells having slowly and rapidly adapting responses to stimuli.

It is found at the base of the skull and projects to trigeminal brain stem areas including principalis, spinal trigeminal nucleus, interpolaris and caudalis.

Additional images

References

  1. Verjans GM, Hintzen RQ, van Dun JM; et al. (2007). "Selective retention of herpes simplex virus-specific T cells in latently infected human trigeminal ganglia". Proc. Natl. Acad. Sci. U.S.A. 104 (9): 3496–501. doi:10.1073/pnas.0610847104. PMID 17360672.

External links

Template:Gray's

Template:Cranial nerves

de:Ganglion Gasseri no:Ganglion Gasseri


Template:WikiDoc Sources