Zygomatic nerve

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Nerve: Zygomatic nerve
Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. (Zygomatic nerve is second from top.)
Nerves of the orbit, and the ciliary ganglion. Side view. (Zygomatic nerve labeled at bottom center.)
Latin	nervus zygomaticus
Gray's	subject #200 889
From	Maxillary nerve
Dorlands / Elsevier	n_05/12567081

The zygomatic nerve (temporomalar nerve; orbital nerve) is a branch of the maxillary nerve (a trigeminal nerve branch) that enters the orbit and helps to supply the skin over the zygomatic and temporal bones.

Structure

The zygomatic nerve arises in the pterygopalatine fossa. It enters the orbit by the inferior orbital fissure, and divides at the back of that cavity into two branches, the zygomaticotemporal nerve and zygomaticofacial nerve.

The zygomatic nerve carries sensory fibers from the skin. It also carries post-synaptic parasympathetic fibers (originating in the pterygopalatine ganglion) to the lacrimal nerve via a communication. These fibers will eventually provide innervation to the lacrimal gland.

Additional images

The nerves of the scalp, face, and side of neck.

See also

• Zygomatic branches of facial nerve

External links

• Zygomatic+nerve at eMedicine Dictionary
• Norman/Georgetown lesson3 (orbit6)
• Norman/Georgetown cranialnerves (V)

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e The cranial nerves: trigeminal nerve
ophthalmic (V1)	frontal: supratrochlear - supraorbital (lateral branch, medial branch) nasociliary: long ciliary - infratrochlear - posterior ethmoidal - anterior ethmoidal (external nasal, internal nasal) - sensory root of ciliary ganglion (ciliary ganglion) lacrimal
maxillary (V2)	in meninges middle meningeal in pterygopalatine fossa zygomatic (zygomaticotemporal, zygomaticofacial) - pterygopalatine (pterygopalatine ganglion see below for details) - posterior superior alveolar in infraorbital canal infraorbital nerve: superior alveolar (middle, anterior) - internal nasal branches on face inferior palpebral - external nasal - superior labial (infraorbital plexus)
mandibular (V3)	in meninges meningeal anterior to muscles of mastication (medial pterygoid/to tensor veli palatini, lateral pterygoid, masseteric, deep temporal) - buccal posterior auriculotemporal (otic ganglion) - lingual (submandibular ganglion) - inferior alveolar (mylohyoid, mental)

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .