Geniculate ganglion

Geniculate ganglion

Infobox Nerve
Name = PAGENAME
Latin = ganglion geniculi nervi facialis
GraySubject = 202
GrayPage = 902


Caption = The course and connections of the facial nerve in the temporal bone.


Caption2 = 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
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DorlandsPre = g_02
DorlandsSuf = 12384530
The geniculate ganglion (from Latin "genu", for "knee"cite web |url=http://www.wordinfo.info/words/index/info/view_unit/897 |title=genu-, geni-, gen- + (Latin: knee). |format= |work=WordInfo |accessdate=2008-10-03] ) is an L-shaped collection of fibers and sensory neurons of the facial nerve located in the facial canal of the head. It receives fibers from the motor, sensory, and parasympathetic components of the facial nerve and sends fibers that will innervate the lacrimal glands, submandibular glands, sublingual glands, tongue, palate, pharynx, external auditory meatus, stapedius, posterior belly of the digastric muscle, stylohyoid muscle, and muscles of facial expression.

Sensory and parasympathetic inputs are carried into the geniculate ganglion via the nervus intermedius. Motor fibers are carried via the facial nerve proper. The greater petrosal nerve, which carries sensory fibers as well as preganglionic parasympathetic fibers, emerges from the anterior aspect of the ganglion.

The geniculate ganglion is one of several ganglia of the head and neck. Like the others, it is a bilaterally distributed structure, with each side of the face having a geniculate ganglion.


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* (NormanAnatomyFig|VII)
* (NormanAnatomyFig|midearcavity)


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Look at other dictionaries:

  • geniculate ganglion — n a small reddish ganglion consisting of sensory and sympathetic nerve cells located at the sharp backward bend of the facial nerve * * * g. geniculi nervi facialis …   Medical dictionary

  • geniculate ganglion — noun : a small reddish ganglion consisting of sensory and sympathetic nerve cells located at the sharp backward bend of the facial nerve …   Useful english dictionary

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  • Geniculate — Ge*nic u*late, a. [L. geniculatus, fr. geniculum little knee, knot or joint, dim. of genu knee. See {Knee}.] Bent abruptly at an angle, like the knee when bent; as, a geniculate stem; a geniculate ganglion; a geniculate twin crystal. [1913… …   The Collaborative International Dictionary of English

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  • geniculate — 1. Bent like a knee. SYN: geniculated. 2. Referring to the geniculum of the facial nerve, denoting the ganglion there present. 3. Denoting the lateral or medial g. body. [L. geniculo, pp. atus, to bend the knee, fr. genu …   Medical dictionary

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  • ganglion geniculi nervi facialis — [TA] the sensory ganglion of the facial nerve, situated on the geniculum of the facial nerve. Called also geniculate g. and g. geniculatum nervi facialis [TA alternative] …   Medical dictionary

  • acousticofacial ganglion — a ganglion of early embryonic life, a portion of which persists as the geniculate ganglion …   Medical dictionary

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