Bones of the Face. 29 



Hamulus 

 lacrymalis 



34. Left Lachrymal Bone, 35. Left Lachrymal Bone, 



Os lacrymale, from the outside. 05 lacrymale, from the inside. 



The lachrymal bone, the smallest bone of the skull, shows 

 on its external surface a vertical ridge, the Crista lacrymalis, by which the 

 surface is divided into 2 parts. The anterior smaller is grooved and 

 forms with a similar groove on the nasal process of the superior maxilla, 

 the lachrymal groove, Fossa saccl lacrymalis, which is continued 

 into the naso-lachrymal canal, Canalis naso-lacrymalis. The Crista 

 lacrymalis terminates below in a ho ok -like process, the Hamulus 

 lacrymalis, which is sometimes entirely absent. The internal surface 

 of the lachrymal bone fills in the anterior ethmoidal cells. 



The lachrymal bone articulates with 4 bones: 2 of the cranium, the 

 frontal and ethmoid bones, and 2 of the face, the superior maxillary and inferior 

 turbinated bones. 



