Infraorbital groove

Not to be confused with the inferior orbital fissure, which is just lateral to the infraorbital groove.

Infraorbital groove
Left maxilla. Outer surface. (Infra-orbital groove labeled at upper right.)
LatinSulcus infraorbitalis maxillae
Anatomical terms of bone

Also not to be confused with the infraorbital canal, into which the groove enters, nor the infraorbital foramen, which is the canal's opening on the other side.

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 vessels and nerve.

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

See also

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This article incorporates text in the public domain from page 159 of the 20th edition of Gray's Anatomy (1918)

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