WordNet

of or characteristic of low rank or importance
one of lesser rank or station or quality
having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
lower than a given reference point; "inferior alveolar artery"
of low or inferior quality
of or relating to the eye socket; "orbital scale"; "orbital arch"
of or relating to an orbit; "orbital revolution"; "orbital velocity"

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(階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/05/30 09:38:24」(JST)

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Not to be confused with the infraorbital groove, infraorbital canal, and infraorbital foramen.

The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the zygomatic branch of the maxillary nerve, and the ascending branches from the pterygopalatine ganglion. The infraorbital vessels are found in the inferior orbital fissure, and travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen.

It is formed by the sphenoid bone and maxilla.

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.

External links [edit]

lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbitforamina) (#3)
Roche Lexicon - illustrated navigator, at Elsevier 34256.000-1
Roche Lexicon - illustrated navigator, at Elsevier 34257.000-1

This article incorporates text from a public domain edition of Gray's Anatomy.

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「下眼窩裂」

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
Latin	Fissura orbitalis inferior
Gray's	subject #46 189