Nares
Nares
Nares (pronunciation: /ˈnɛəriːz/) are the two openings of the nose in many animals. These are the primary passages for air and other gases to travel to and from the lungs.
Etymology
The term "nares" is derived from the Latin word 'naris', meaning 'nose'. It is the plural form of the word, referring to both nostrils collectively.
Anatomy
The nares are divided into two sections: the external nares and the internal nares. The external nares (also known as the nostrils) are the visible part of the nose, while the internal nares (also known as the choanae) are located further within the nasal cavity.
The nares are surrounded by various structures including the nasal septum, which separates the two nares, and the alar cartilage, which forms the shape of the nostrils. The nares lead to the nasal cavity, which is lined with mucous membrane and tiny hairs called cilia that help filter the air.
Function
The primary function of the nares is to provide a pathway for air to reach the lungs. They also play a role in the sense of smell as the air passing through the nares contains odor molecules that are detected by the olfactory receptors in the nasal cavity.
Related Terms
External links
- Medical encyclopedia article on Nares
- Wikipedia's article - Nares
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