Auriculotemporal nerve

Dr Craig Hacking et al.

The auriculotemporal nerve is a sensory branch of the posterior division of the mandibular division of the trigeminal nerve.

Gross anatomy

The auriculotemporal nerve divides posteriorly from the posterior division of the mandibular division before dividing into two roots separate to encircle the middle meningeal artery just as it ascends to enter the foramen spinosum. The two roots then rejoin to pass laterally between the neck of the mandible and the sphenomandibular ligament, and then between the temporomandibular joint and the external auditory meatus, giving off small articular branches to the temporomandibular joint. At the upper border of the parotid gland it supplies the sheath of the gland and then terminates as two cutaneous branches:

The auriculotemporal nerve receives sympathetic fibres from the middle meningeal artery and secretomotor parasympathetic fibres (which derive from the otic ganglion) from the lesser petrosal nerve, both which supply the parotid gland.

Head and neck anatomy
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Article Information

rID: 53088
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:

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