Inferior_orbital_fissure Knowpia

Inferior orbital fissure
Inferior orbital fissure
	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
Details
Identifiers
Latin	fissura orbitalis inferior
TA98	A02.1.00.084
TA2	489
FMA	54802
	Anatomical terminology [edit on Wikidata]

The inferior orbital fissure is a gap between the greater wing of sphenoid bone, and the maxilla. It connects the orbit (anteriorly) with the infratemporal fossa and pterygopalatine fossa (posteriorly).^[1]^: 397

Anatomy edit

The medial end of the inferior orbital fissure diverges laterally from the medial end of the superior orbital fissure. It is situated between the lateral wall of the orbit and the floor of the orbit.^[1]^: 397

Contents edit

The fissure gives passage to multiple structures, including:

Infraorbital nerve,^[1]^: 402 artery^[1]^: 364 and vein^{[citation needed]}
Inferior ophthalmic vein^[1]^{: 364, 403}
Zygomatic nerve^[1]^: 496
Orbital branches of the pharyngeal nerve^[1]^: 370
Maxillary nerve

Additional images edit

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.

References edit

This article incorporates text in the public domain from page 189 of the 20th edition of Gray's Anatomy (1918)

^ ^a ^b ^c ^d ^e ^f ^g Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). ISBN 978-0-7295-3752-0.

External links edit

lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbitforamina) (#3)
"Anatomy diagram: 34256.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-12-27.
"Anatomy diagram: 34257.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-07-22.

[:0222-1] ^ ^a ^b ^c ^d ^e ^f ^g Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). ISBN 978-0-7295-3752-0.

[1]

Summary

Anatomy edit

Contents edit

Additional images edit

See also edit

References edit

External links edit