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Nose is an important sense organ in vertebrates including men with special function in respiration mainly in inhaling and exhaling.  Anatomically, a nose is a bulge in vertebrates engrossing the nostrils the main organelles for respiration. Nose as a phrase might be used to assign the important end of anything, as a plane. In the majority of mammals, nose also houses the nose hair that catches airborne particles and prevents them from attaining the lungs. Inside and behind the nose are the sinuses and olfactory mucosa. Behind the nasal cavity, the air next passes throughout the pharynx, which is shared by the digestive system, as well as into the rest of the respiratory system thus nose is regarded as the most vital organ. In human beings, the nose is situated centrally on human face. In most other mammals, nose is located on the higher tip of the snout. Nose is regarded as the guardian of the lungs as the general respiratory functioning of the lings has close link with the nose. Nose is responsible for the process of the inhaling and exhaling of the air during the process of respiration. Our nose and connected structure frequently carry out additional function worried with conditioning incoming air, as by warming and humidifying it, and also by reclaiming humidity from the air prior to exhalation.