small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts

a thin, scalelike structure located in the middle wall of each eye socket between the ethmoid bone and the maxilla

abbrev. skull bone (see figures and )

a thin scalelike bone, roughly resembling a fingernail in size and shape, at the anterior part of the medial wall of the orbit, articulating with the frontal and ethmoidal bones and the maxilla and inferior nasal concha.

The lacrimal bone, the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit. It has two surfaces and four borders.