Nostril
Nostril
Nostril (pronunciation: /ˈnɒstrɪl/) is a term used in anatomy to refer to the external openings of the nasal cavity. The word originates from the Old English 'nosthyrl', which is a combination of 'nosu' (nose) and 'thyrel' (hole).
Etymology
The term 'nostril' is derived from the Old English 'nosthyrl', which is a combination of 'nosu' (nose) and 'thyrel' (hole). The term has been in use since before the 12th century.
Anatomy
In humans, the nostrils are the parts of the nose that lead to the nasal cavity. They are separated by the nasal septum, a wall of cartilage. The nostrils are the primary route for respiration and are also involved in the sense of smell.
Related Terms
- Nasal cavity: The large, air-filled space above and behind the nose in the middle of the face.
- Nasal septum: The thin wall of bone and cartilage that separates the nostrils.
- Respiration: The process of inhaling and exhaling air in order to exchange oxygen and carbon dioxide between the body's cells and the environment.
- Smell: One of the five senses, which is mediated by specialized sensory cells of the nasal cavity.
See Also
External links
- Medical encyclopedia article on Nostril
- Wikipedia's article - Nostril
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