Geniculate ganglion

Geniculate ganglion
The course and connections of the facial nerve in the temporal bone.
Cranial nerves VII and VIII and selected structures of the inner and middle ear. 1 Nervus vestibularis, 2 Nervus cochlearis, 3 Nervus intermediofacialis, 4 Ganglion geniculi, 5 Chorda tympani, 6 Cochlea, 7 Ductus semicirculares, 8 Malleus, 9 Membrana tympani, 10 Tuba auditiva
Details
InnervatesLacrimal glands, submandibular glands, sublingual glands, tongue, palate, pharynx, external auditory meatus, stapedius muscle, posterior belly of the digastric muscle, stylohyoid muscle, muscles of facial expression
Identifiers
Latinganglion geniculi nervi facialis
MeSHD005830
TA98A14.2.01.116
TA26287
FMA53414
Anatomical terms of neuroanatomy

The geniculate ganglion (from Latin genu, for "knee"[1]) is a bilaterally paired special sense ganglion[2] of the intermediate nerve component of the facial nerve (CN VII).[3] It is situated within facial canal of the head.[citation needed]

It contains cell bodies of first-order unipolar sensory neurons which convey gustatory (taste) afferents from taste receptors of the anterior two-thirds of the tongue by way of the chorda tympani, and of the palate by way of the greater petrosal nerve, From the ganglion, the proximal fibres proceed to the gustatory (i.e. superior/rostral[3]) part of the solitary nucleus where they synapse with second-order neurons.[2]

  1. ^ "genu-, geni-, gen- + (Latin: knee)". WordInfo. Retrieved 2008-10-03.
  2. ^ a b Fitzgerald, Maurice J. T.; Gruener, Gregory; Mtui, Estomih (2011). Clinical Neuroanatomy and Neuroscience (6th ed.). Edinburgh: Saunders. pp. 241–243. ISBN 978-0-7020-3738-2.
  3. ^ a b "ganglion géniculé l.m. - Dictionnaire médical de l'Académie de Médecine". www.academie-medecine.fr. Retrieved 2024-05-24.