Compare the structure and functions of the external nose and the internal nose.

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crmhaske eNotes educator| Certified Educator

We have a nose to warm, clean, and humidify the air we breath, and for perception of smell and taste (when you have a cold you can't really taste your food because smell is an important factor in taste).

The purpose of the external nose is two-fold: allow particles to enter the nose for the perception of smell and taste, and for allowing air to enter when we breathe.

The functions of the internal nose are to transfer chemcical information from the hair folicles stimulated by the particles for the perception of smell and taste, to produce mucus to help clean the respitory tract clean and moist, and to direct the flow of air through the nasal passage, into the nasalpharnx to the hypopharanyx, and finally to the lungs.