Connective tissue and skin cover the framework. Air enters the nasal cavity from the outside through two openings: the nostrils or external nares. The openings from the nasal cavity into the pharynx are the internal nares.

Do humans have nares?

Like other tetrapods, humans have two external nostrils (anterior nares) and two additional nostrils at the back of the nasal cavity, inside the head (posterior nares, posterior nasal apertures or choanae).

Is nares and nostrils the same?

naris) openings of the nose. The two external (or anterior) nares are the nostrils, leading from the nasal cavity to the outside. The two internal (or posterior) nares (choanae) are the openings leading from the nasal cavity into the pharynx.