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Trigeminal ganglion

Redirected from Semilunar ganglion

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Nerve: Trigeminal ganglion (in red)
Nerves of the orbit. Seen from above. (Semilunar ganglion visible near bottom.)
Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. (Semilunar ganglion visible in upper left.)
Latin ganglion trigeminale, ganglion semilunare (Gasseri)
Gray's subject #200 886
MeSH A08.340.390.850

The trigeminal ganglion (or Gasserian ganglion, or semilunar ganglion) 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.



The greater superficial petrosal nerve lies also underneath the ganglion.





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.

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