Geniculate ganglion
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220071177
2008-06-18T03:52:53Z
76.87.81.54
{{Infobox Nerve |
Name = {{PAGENAME}} |
Latin = ganglion geniculi nervi facialis |
GraySubject = 202 |
GrayPage = 902 |
Image = Gray789.png |
Caption = The course and connections of the [[facial nerve]] in the [[temporal bone]]. |
Image2 = Ear internal anatomy numbered.svg |
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 language|Latin]] ''genu'', for "knee") is an L-shaped collection of fibers and [[sensory neuron]]s of the [[facial nerve]] located in the [[facial canal]] of the [[head]]. It receives fibers from the motor, sensory, and [[parasympathetic nervous system|parasympathetic]] components of the facial nerve and sends fibers that will innervate the [[lacrimal gland]]s, [[submandibular gland]]s, [[sublingual gland]]s, [[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.
==Additional images==
<gallery>
Image:Gray788.png | Plan of the facial and intermediate nerves and their communication with other nerves.
</gallery>
==External links==
* {{eMedicineDictionary|Geniculate+ganglion}}
* {{NormanAnatomy|cranialnerves}} ({{NormanAnatomyFig|VII}})
* {{NormanAnatomy|lesson3}} ({{NormanAnatomyFig|midearcavity}})
{{neuroscience-stub}}
{{Cranial nerves}}
[[hu:Ganglion geniculi nervi facialis]]
[[ja:膝神経節]]
[[sr:Колени ганглион]]