Nasal sill

Last revised by Dr Daniel J Bell on 22 Aug 2017

The nasal sill is the soft tissue ridge forming the posterior margin of the anterior naris. It also forms the caudal margin of the nasal vestibule.

The nasal sill forms part of the nasal base, which is defined as the inferior third of the nose when viewing the nose from below with the neck extended. 

Anatomy: Head and neck

Anatomy: Head and neck

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