Nose
Nose
The nose (/noʊz/) is a prominent feature of the face that serves as the primary organ for the sense of smell, and also functions as part of the body's respiratory system, filtering foreign particles from entering the lungs.
Etymology
The word "nose" comes from the Old English nosu, which is of Germanic origin. It is related to the Dutch neus and the German Nase.
Anatomy
The nose is divided into two main sections: the external nose and the internal nose. The external nose includes the nasal bone and the soft tissues that form the shape of the nose. The internal nose, also known as the nasal cavity, is a hollow space behind the nose, divided by the nasal septum. It is lined with mucous membrane and contains the olfactory epithelium, which is responsible for the sense of smell.
Function
The primary function of the nose is olfaction, or the sense of smell. The nose also plays a crucial role in respiration, as it filters, warms, and humidifies the air we breathe. Additionally, the nose contributes to the sense of taste by carrying flavor molecules to the olfactory receptors in the back of the throat.
Related Terms
- Nasal septum: The thin wall of bone and cartilage that separates the two nostrils.
- Olfaction: The sense of smell.
- Rhinitis: Inflammation of the nasal mucous membrane.
- Rhinoplasty: A surgical procedure to change the shape of the nose.
External links
- Medical encyclopedia article on Nose
- Wikipedia's article - Nose
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