Infraorbital plexus

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Nerve: Infraorbital plexus
Mandibular division of the trifacial nerve. (Infraorbital labeled at center right.)
Gray's	subject #200 891
Dorlands/Elsevier	p_24/12647998

The superior labial branches descend behind the Quadratus labii superioris, and are distributed to the skin of the upper lip, the mucous membrane of the mouth, and labial glands. They are joined, immediately beneath the orbit, by filaments from the facial nerve, forming with them the infraorbital plexus.

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• SIG at UWash Infraorbital%20plexus

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v • d • e Nerves of head and neck: the cranial nerves

I-IV: olfactory - optic - oculomotor (superior branch, inferior branch) - trochlear V: trigeminal: trigeminal ganglion V1: ophthalmic: lacrimal - frontal (supratrochlear, supraorbital) - nasociliary (long root of ciliary, long ciliary, infratrochlear, posterior ethmoidal, anterior ethmoidal) - ciliary ganglion (short ciliary) V2: maxillary: middle meningeal - in the pterygopalatine fossa (zygomatic, zygomaticotemporal, zygomaticofacial, sphenopalatine, posterior superior alveolar) in the infraorbital canal/infraorbital nerve (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 (greater palatine, lesser palatine, nasopalatine, pharyngeal) V3: mandibular: meningeal - medial pterygoid - anterior (masseteric, deep temporal, buccal, lateral pterygoid) posterior (auriculotemporal, lingual, inferior alveolar, mylohyoid, mental) - otic ganglion - submandibular ganglion VI: abducens VII: facial: nervus intermedius - geniculate - inside facial canal (greater 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 (Scarpa's ganglion) IX: glossopharyngeal: nucleus ambiguus - ganglia (superior, petrous) - tympanic (tympanic plexus, lesser petrosal) - carotid sinus - pharyngeal branches - pharyngeal plexus X: vagus: ganglia (jugular, nodose) - Alderman's nerve - in the neck (pharyngeal branch, superior laryngeal ext and int, recurrent laryngeal) in the thorax (pulmonary branches, esophageal plexus) - in the abdomen (gastric plexuses, celiac plexus, gastric plexus) XI: accessory XII: hypoglossal