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The nostrils, which form the external entrance of the nose, lead into the two nasal cavities, which are separated from each other by the nasal septum, a partition formed of cartilage and bone. Three bony ridges project from the outer wall of each nasal cavity and partially divide the cavity into three air passages. At the back of the nose these passages lead into the pharynx. The passages also are connected by openings with the paranasal sinuses. One of the functions of the nose is to drain fluids discharged from the sinuses. The nasal cavities also have a connection with the ears by the eustachian tubes, and with the region of the eyes by the nasolacrimal ducts.
The interior of the nose is lined with mucous membrane, and most of the membrane is covered with minute hairlike projections called cilia. Moving in waves these cilia sweep out from the nasal passages the nasal mucus, which may contain pollen, dust, and bacteria from the air. The mucous membrane also acts to warm and moisten the inhaled air.
High in the interior of each nasal cavity is a small area of mucous membrane that is not covered with cilia. In this pea-sized area are located the endings of the nerves of smell, the olfactory receptors. These receptors sort out odors. Unlike the taste buds of the tongue, which distinguish between only four different tastes (salt, sweet, sour, and bitter), the olfactory receptors can detect innumerable different odors. This ability to smell contributes greatly to what we usually think of as taste, because much of what we consider flavor is really odor. (See also smell.)
Immediately after surgery the greatest danger is hemorrhage. If the patient swallows repeatedly or spits up blood, excessive bleeding should be suspected. A Teflon splint or intranasal packing often is used to support the nasal structures and prevent the formation of hematoma, another complication that may develop.
Ice compresses are applied for 24 hours after surgery to reduce swelling and minimize bleeding. The patient is placed in semi-Fowler position during this time.
During convalescence the patient should avoid blowing his nose and picking at crusts. A lubricant may be used to soften the crusts, but no swabs or other objects should be used to clean the nose. A humidifier in the room may help reduce drying and irritation of the mucous membranes during healing.
nose(nōz) the specialized facial structure serving as an organ of the sense of smell and as part of the respiratory apparatus.
Drug slang A regionally popular street term for cocaine
Vox populi A popular term for a distinct talent for detecting something
noseAnatomy The double-barrelled structure at the center of the face, which is a conduit of air for non-mouth breathers, and a support for eyeglasses. See Cocaine nose, Internal nose, Potato nose, Rabbit nose, Saddle nose, Sculptured nose, Stinky nose, Tapir nose, WC Fields nose Drug slang A regionally popular street term for cocaine.
Synonym(s): nasus (2) .
noseA term used both for the externally visible part and for the internal nasal air passages. The nose is the normal entry route for inspired air, which is warmed, moistened and cleaned. Chemical particles in the air stimulate the nerve endings of the olfactory nerves in the roof of the nasal cavity, giving rise to the sensation of smell.
nosethe projecting part of the head of higher vertebrates that usually carries the nostrils and is associated with the sense of smell.
Patient discussion about nose
Q. Regarding Seasonal Nasal allergy. My father is suffering from seasonal nasal allergies. He took a 24-hour loratadine pill, 5 hours ago. His nose is still running just like it was. Can I take a benedryl, or is it dangerous to mix loratadine and benedryl? What else can I do to stop my nose?
Q. When seasons change , a lot of people suffer of runny nose and other common allergy symptoms , why is it always like that when seasons change ?
Q. When you get sick (runny nose, cold, cough) do you still workout?