The Probert Encyclopaedia of Medicine

NARES

The nares (nostrils) serve as the opening for the nasal fossae, the two cavities in the middle of the face. The anterior nares open at the front of the face and the posterior
nares open into the nasopharynx. The posterior nares are somewhat smaller because they are narrowed by the mucous membrane that helps filter the air.
Research Nares