Inferior orbital fissure

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The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the maxillary nerve and its zygomatic branch, the infraorbital vessels, and the ascending branches from the sphenopalatine ganglion.

It is formed by the sphenoid bone and maxilla.

Images

Left infratemporal fossa.

Horizontal section of nasal and orbital cavities.

Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.

Inferior orbital fissure
Image:Fissuraorbitalisinferior.PNG
The skull from the front. (Label for inferior orbital fissure is at center right.)
1 Foramen ethmoidale, 2 Canalis opticus, 3 Fissura orbitalis superior, 4 Fossa sacci lacrimalis, 5 Sulcus infraorbitalis, 6 Fissura orbitalis inferior, 7 Foramen infraorbitale
Latin	f. orbitalis inferior
Gray's	subject #46 189
Dorlands/Elsevier	f_08/12365602

See also

• Foramina of skull

External links

• Norman/Georgetown lesson3 (orbitforamina) (#3)
• Roche Lexicon - illustrated navigator, at Elsevier 34256.000-1
• Roche Lexicon - illustrated navigator, at Elsevier 34257.000-1

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 As such, some of the information contained herein may be outdated.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 Foramina of the skull (and canals, fissures, meati, and hiati)
Anterior cranial fossa	to Orbit: ethmoidal foramina (anterior, posterior) to Nasal cavity: olfactory foramina (CN-I) - foramen cecum
Middle cranial fossa	to Orbit: optic canal (CN-II) - superior orbital fissure (CN-III,IV,V1,VI) to Pterygopalatine fossa: foramen rotundum (CN-V2) - pterygoid canal to Infratemporal fossa: foramen ovale (CN-V3) - foramen spinosum/carotid canal other: foramen lacerum - hiatus for greater petrosal nerve - hiatus for lesser petrosal nerve - sphenoidal emissary foramen
Posterior cranial fossa	internal auditory meatus/facial canal/stylomastoid foramen (CN-VII,VIII) - jugular foramen (CN-IX,X,XI) - foramen magnum (CN-XI) - hypoglossal canal (CN-XII) - condylar canal - mastoid foramen
Orbit	to Nasal cavity: nasolacrimal canal to Face: supraorbital (notch, foramen) - infraorbital (foramen, groove) - zygomatic foramen (-facial, -temporal) to Pterygopalatine fossa: inferior orbital fissure
Pterygopalatine fossa	to Nasal cavity: sphenopalatine foramen to Oral cavity: greater palatine canal/greater palatine foramen - lesser palatine canals/lesser palatine foramina to Infratemporal fossa: pterygomaxillary fissure to Nasopharynx: palatovaginal canal
Nasal cavity	to Oral cavity: incisive canals - incisive foramen
Other	external acoustic meatus - mandibular foramen - mental foramen - parietal foramen - petrotympanic fissure - semilunar hiatus

v • d • e Bones of head and neck: cranial sutures, fontanelles, and related regions
Cranial sutures	Cranial: Frontoethmoidal - Frontal or Metopic (Frontal/Frontal) - Coronal (Frontal/Parietal) - Occipitomastoid (Occipital/Temporal) - Lambdoid (Parietal/Temporal) - Sagittal (Parietal/Parietal) - Sphenoethmoidal - Sphenofrontal - Sphenoparietal - Sphenosquamosal (Sphenoid/Temporal) - Sphenopetrosal (Sphenoid/Temporal) -Squamosal (Temporal/Parietal) - Petrosquamous (Temporal/Temporal) Facial: Palatomaxillary suture Cranial-facial: Sphenozygomatic - Zygomaticotemporal - Zygomaticofrontal
Fontanelles	Anterior fontanelle - Posterior fontanelle - Sphenoidal fontanelle - Mastoid fontanelle
Foramina of multiple bones	Inferior orbital fissure - Foramen lacerum - Jugular foramen - Nasolacrimal canal
Fossae	Anterior cranial fossa - Middle cranial fossa - Posterior cranial fossa - Cranial cavity
Other compound structures	Cranial: Asterion - Pterion - Calvaria - Stephanion - Bregma - Lambda Facial: Nasion Cranial-facial: Dacryon - Zygomatic arch - Temporal fossa - Infratemporal fossa - Pterygomaxillary fissure - Pterygopalatine fossa

hu:Fissura orbitalis inferior

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 .