naris

Orifice of the olfactory system. The naris is the route by which odorants enter the olfactory system[MAH].

種類 Organ
親構造 orifice

下位構造

primary choana Organ external naris Organ internal naris Organ

よくある質問

What is a naris and what is its function?
A naris (plural: nares) is an opening of the nasal cavity — essentially a nostril. It serves as the entry point for odorants into the olfactory system and for air during nasal breathing, and also participates in filtering, warming, and humidifying inspired air.
What is the difference between internal and external nares?
External nares are the nostrils visible on the face, through which air and odorants enter from the environment. Internal nares (choanae) are the posterior openings connecting the nasal cavity to the nasopharynx, allowing air to pass toward the lungs.
How many nares do humans have?
Humans have two external nares (nostrils) separated by the nasal septum. Each naris leads into its own nasal cavity, which converges at the choanae to enter the nasopharynx.

関連構造

mucus body coating mucous body coating mucus cocoon mucous cocoon Mullerian duct ductus paramesonephricus multi cell part structure cell part cluster multicellular anatomical structure multicellular structure multilaminar epithelium laminated epithelium multi-tissue structure multi-tissue structures multi-unit eye

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Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.