nose
(nōz 
)
The projection in the center of the face that is the organ of smell and the entrance to the nasal cavities. The nose is a triangle composed of and bounded by bone and cartilage covered with skin and lined with mucous membrane. Hairs just inside the nostrils block the entrance of dusts and small insects.SYN: nasus; organum olfactus.
Examination: Note the shape, size, color, and state of the alae nasi, and any discharge, interference with respiration, evidence of injury, deflected or perforated septum, enlarged turbinates, or tenderness over frontal and maxillary sinuses.
Diagnosis: Chronic red nose: Dilated capillaries as a result of alcoholism, lupus erythematosus, acne rosacea, pustules, and boils. Superficial ulceration: Basal cell carcinoma, tuberculosis, syphilis, tuberculous ulcer, epithelioma. Broad and coarse: Cretinism, myxedema, acromegaly. Sunken: Syphilis or injury. Pinched with small nares: Hypertrophied adenoid tissue or chronic obstructions; tumors. Inoffensive watery discharge: Allergic rhinitis, the common cold, early stages of measles. Offensive discharge: Nasopharyngeal diphtheria, lupus, local infection, impacted foreign bodies, caries, rhinitis, gland ers, syphilitic infection.
foreign body in the n.Presence of material in the nasal cavity that was either inhaled or accidentally placed there. A child may place a foreign object in his or her own or another child's nose.
Coughing or watery or purulent discharge; occasionally pain and obstruction of nose. The foreign body may cause a nasal obstruction and infection, often with a foul-smelling discharge. If the foreign body is very small, symptoms may be absent.
Vigorous nose blowing should be discouraged because it may spread infection to the various cavities and sinuses about the nose or to the middle ear. The foreign body should be removed by a health care professional.
saddle n.A nose with a depressed bridge due to congenital absence of bony or cartilaginous support, to a disease such as leprosy or congenital syphilis, or to postoperative complications of suppuration and destruction of the supporting framework.