This is a deeply serrated notch in the nasal part of the bone directly anterior to the nasal spine. It articulates medially with the nasal bones, more laterally with the frontal processes of the maxillae and lacrimal bones.

This term comes from the Latin nasus that arises from the Sanskrit term nasa, both meaning nose. The term notch refers to an indentation in the margin of a bone. The Latin equivalent for this term is incisure.

Incisura nasalis

Incisure nasale