Tags: Anatomical Structure.
The posterior lacrimal crest with a part of the orbital surface immediately behind it gives origin to the lacrimal part of the Orbicularis oculi and ends below in a small hook-like projection the lacrimal hamulus which articulates with the lacrimal tubercle of the maxilla and completes the upper orifice of the lacrimal canal; it sometimes exists as a separate piece and is then called the lesser lacrimal bone.