Nostril

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Nostril

The nostril is a part of the respiratory system in humans and many animals. It is one of the two channels of the nose, the other being the nasal cavity. The nostrils are the external openings to the nasal cavity, allowing the intake of air for respiration and the sense of smell.

Anatomy[edit | edit source]

The nostrils are separated by the nasal septum, a wall of cartilage and bone. Each nostril is surrounded by the alar cartilage and the nasal bone. The nostrils are lined with mucous membrane, which helps to moisten and warm the air that is inhaled.

Function[edit | edit source]

The primary function of the nostrils is to provide an airway for respiration. The nostrils also have a role in the sense of smell, as they contain olfactory receptors that detect odors. In addition, the nostrils help to filter and humidify the air that is inhaled, protecting the lungs from dryness and irritation.

Health and disease[edit | edit source]

Various health conditions can affect the nostrils, including allergies, sinusitis, and nasal polyps. Treatment for these conditions may involve medication, surgery, or other interventions.

See also[edit | edit source]


Nostril Resources

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