From Wikipedia, the free encyclopedia
The auriculotemporal nerve is a branch of the mandibular nerve that runs with the superficial temporal artery and vein, and provides sensory innervation to various regions on the side of the head.
[edit] Structure
The auriculotemporal nerve arises as two roots from the posterior division of the mandibular nerve. These roots encircle the middle meningeal artery. The roots then converge to form a single nerve.
The auriculotemporal nerve passes medially to the neck of the mandible and then turns superiorly, posterior to its head and anterior to the auricle. It then crosses over the root of the zygomatic process of the temporal bone, deep to the superficial temporal artery.
It supplies the auricle, external acoustic meatus, outer side of the tympanic membrane, and the skin in the temporal region.
It also carries postganglionic parasympathetic fibers from the otic ganglion to the parotid gland.
[edit] See also
[edit] External links
Cranial nerves |
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I-IV: olfactory - optic - oculomotor - trochlear
V: trigeminal: semilunar ganglion
V1: ophthalmic: lacrimal - frontal (supratrochlear, supraorbital) - nasociliary (long root of ciliary, long ciliary, infratrochlear, ethmoidal) - ciliary ganglion - short ciliary
V2: maxillary: middle meningeal - in the pterygopalatine fossa (zygomatic, zygomaticotemporal, zygomaticofacial, sphenopalatine, posterior superior alveolar)
in the infraorbital canal (middle superior alveolar, anterior superior alveolar)
on the face (inferior palpebral, external nasal, superior labial, infraorbital plexus) - pterygopalatine ganglion (deep petrosal, nerve of pterygoid canal)
branches of distribution (palatine, nasopalatine, pharyngeal)
V3: mandibular: nervus spinosus - internal pterygoid - anterior (masseteric, deep temporal, buccinator, external pterygoid)
posterior (auriculotemporal, lingual, inferior alveolar, mylohyoid, mental) - otic ganglion - submandibular ganglion
VI: abducent
VII: facial: nervus intermedius - geniculate - inside facial canal (great petrosal, nerve to the stapedius, chorda tympani)
at exit from stylomastoid foramen (posterior auricular, digastric - stylohyoid)
on face (temporal, zygomatic, buccal, mandibular, cervical)
VIII: vestibulocochlear: cochlear (striae medullares, lateral lemniscus) - vestibular
IX: glossopharyngeal: fasciculus solitarius - nucleus ambiguus - sympathetic efferent fibers - ganglia (superior, petrous) - tympanic
X: vagus: ganglia (jugular, nodose) - Alderman's nerve - in the neck (pharyngeal branch, superior laryngeal, recurrent laryngeal) - in the thorax (pulmonary branches, esophageal plexus) - in the abdomen (gastric plexuses, celiac plexus, gastric plexus)
XI: accessory XII: hypoglossal
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