The lacrimal bone is a thin, approximately quadrangular bone located on the medial wall of the orbit.
Anatomy
Sulcus lacrimalis
The sulcus lacrimalis is the lacrimal groove, which is completed by the frontal process of the maxilla to form the fossa sacci lacrimalis.
Crista lacrimalis posterior
The crista lacrimalis posterior is a sharp ridge forming the posterior boundary of the sulcus lacrimalis. Inferiorly, the ridge has a forward-curving hook, the hamulus lacrimalis, which forms the inferior border of the fossa sacci lacrimalis1.
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