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Infraorbital groove

Bony groove in the maxilla of the skull

Bony groove in the maxilla of the skull

FieldValue
NameInfraorbital groove
Latinsulcus infraorbitalis maxillae
ImageGray157.png
CaptionLeft maxilla. Outer surface. (Infra-orbital groove labeled at upper right.)
Image2Orbita mensch.jpg
Caption21 Foramen ethmoidale, 2 Canalis opticus, 3 Fissura orbitalis superior, 4 Fossa sacci lacrimalis, 5 Sulcus infraorbitalis, 6 Fissura orbitalis inferior, 7 Foramen infraorbitale
PartOfMaxilla of skullSystem=Skeletal

The infraorbital groove (or sulcus) is located in the middle of the posterior part of the orbital surface of the maxilla. Its function is to act as the passage of the infraorbital artery, the infraorbital vein, and the infraorbital nerve.

Structure

The infraorbital groove begins at the middle of the posterior border of the maxilla (with which it is continuous). This is near the upper edge of the infratemporal surface of the maxilla. It passes forward, and ends in a canal which subdivides into two branches.

The infraorbital groove has an average length of 16.7 mm, with a small amount of variation between people. It is similar in men and women.

Function

The infraorbital groove creates space that allows for passage of the infraorbital artery, the infraorbital vein, and the infraorbital nerve.

Clinical significance

The infraorbital groove is an important surgical landmark for local anaesthesia of the infraorbital nerve.

Additional images

File:Gray191.png|Horizontal section of nasal and orbital cavities. (Note distinction between infraorbital groove and inferior orbital fissure.)

References

References

  1. Hwang, Se Hwan. (2013-09-01). "Morphometric analysis of the infraorbital groove, canal, and foramen on three-dimensional reconstruction of computed tomography scans". Surgical and Radiologic Anatomy.
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This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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