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Thursday, 13 December 2018

Definition and Structure of the Nose

This is part of the face structure used for both smelling and breathing.

    The nose is divided into two by a partition called septum. Each side is called nostril. The very top of the nose consists of bone. The other parts of the nose is made up of cartilage and muscles. The inside of the nostrils is skin lined with moist mucous membrane. These contain small glands which produce water secretions to keep the lining moist. The shape of the nose is unique. No two individuals have the same shape of nose.

    The odour or smell we perceive are taken to the brain through the olfactory nerves for interpretation.

    Inside the nostrils are tiny hairs which act as filter to the air that enters into it.

Functions of the Nose

• It is an organ of smell

• It serves as a channel through which the air we breath is passed and filtered.

• It contributes to proper appearance of an individual.
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