The infraorbital margin is the lower margin of the eye socket.

Structure

It consists of the zygomatic bone and the

maxilla The maxilla (plural: ''maxillae'' ) in vertebrates is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The ...

, on which it separates the anterior and the orbital surface of the body of the maxilla.

Function

It is an attachment for the

levator labii superioris muscle The levator labii superioris (pl. ''levatores labii superioris'', also called quadratus labii superioris, pl. ''quadrati labii superioris'') is a muscle of the human body The human body is the structure of a Human, human being. It is compose ...

. Bones of the head and neck {{musculoskeletal-stub