NOSE
- An organ above the mouth of a human or animal, used for smelling and breathing.
- A nose is a protruberance in vertebrates that houses the nostrils, or nares, which receive and expel air for respiration alongside the mouth.
- Behind the nose are the olfactory mucosa and the sinuses.
- The nose processes the air humans breathe.
- hairs and mucus filter the air, while receptors in the olfactory epithelium send messages about smell to the brain via the olfactory bulb and nerve.
- Air comes into the body through the nose. As it passes over the specialized cells of the olfactory system, the brain recognizes and identifies smells.
- Hairs in the nose clean the air of foreign particles. As air moves through the nasal passages, it is warmed and humidified before it goes into the lungs.
STRUCTURE-
- Several bones and nasal cartilage make up the bony cartilaginous framework of the nose and internal structure.
- The nose is also made up of some types of soft tissues, such as skin, epithelia, mucosa membrane, muscles, nerve and blood. And in the skin there are sebaceous glands.
NOSE SHAPE-
- The shape of nose varies widely due to differences in the nasal bones, shapes and formation of the bridge of the nose.
- Some nose shapes were classified for surgeries by Eden Warwick in nasology 1848.
COMMON NASAL CONDITION-
- The most common medical condition related to the nose is nasal congestion.
- This can be caused by colds or flu, allergies, or environmental factors, resulting in inflammation of the nasal passage.
- The body's response to congestion is to convulsively expel air through the nose by a sneeze.
- Nosebleed, known medically as Epistaxis, are a second common medical issue of the nose. As many as 60% of people report nosebleed experiences, with the highest rates found in children under 10 and adults over 50.
- And because of nose's prominent position, the nose is especially vulnerable to injury, including fractures,Bacterial nasal infection, nosebleed, objects inserted in the nose, and polyps also can affect the nose.
- The mucous membrane of the nose may become inflamed(rhinitis). This inflammation may spread to lining of the sinuses (rhino-sinusitis).
