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Nasal Cavity
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D009296 |
[The proximal portion of the respiratory passages on either side of the NASAL SEPTUM. Nasal cavities, extending from the nares to the NASOPHARYNX, are lined with ciliated NASAL MUCOSA.
] |
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Nasal Decongestants
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D014663 |
[Drugs designed to treat inflammation of the nasal passages, generally the result of an infection (more often than not the common cold) or an allergy related condition, e.g., hay fever. The inflammation involves swelling of the mucous membrane that lines the nasal passages and results in inordinate mucus production. The primary class of nasal decongestants are vasoconstrictor agents. (From PharmAssist, The Family Guide to Health and Medicine, 1993)
] |
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Nasal Lavage
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D055556 |
[Irrigation of the nose with saline or irrigation solutions for diagnostic or therapeutic purposes. It is used to remove irritants, allergens, or microorganisms from the nose.
] |
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Nasal Lavage Fluid
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D017817 |
[Fluid obtained by THERAPEUTIC IRRIGATION or washout of the nasal cavity and NASAL MUCOSA. The resulting fluid is used in cytologic and immunologic assays of the nasal mucosa such as with the NASAL PROVOCATION TEST in the diagnosis of nasal hypersensitivity.
] |
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Nasal Mucosa
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D009297 |
[The ciliated mucoperostium lining of the MAXILLARY SINUS.
, The mucous lining of the NASAL CAVITY, including lining of the nostril (vestibule) and the OLFACTORY MUCOSA. Nasal mucosa consists of ciliated cells, GOBLET CELLS, brush cells, small granule cells, basal cells (STEM CELLS) and glands containing both mucous and serous cells.
] |
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Nasal Obstruction
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D015508 |
[Any hindrance to the passage of air into and out of the nose. The obstruction may be unilateral or bilateral, and may involve any part of the NASAL CAVITY.
] |
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Nasal Polyps
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D009298 |
[Focal accumulations of EDEMA fluid in the NASAL MUCOSA accompanied by HYPERPLASIA of the associated submucosal connective tissue. Polyps may be NEOPLASMS, foci of INFLAMMATION, degenerative lesions, or malformations.
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Nasal Provocation Tests
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D009299 |
[Application of allergens to the nasal mucosa. Interpretation includes observation of nasal symptoms, rhinoscopy, and rhinomanometry. Nasal provocation tests are used in the diagnosis of nasal hypersensitivity, including RHINITIS, ALLERGIC, SEASONAL.
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Nasal Septal Perforation
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D061270 |
[An opening or hole in the NASAL SEPTUM that is caused by TRAUMA, injury, drug use, or pathological process.
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Nasal Septum
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D009300 |
[The partition separating the two NASAL CAVITIES in the midplane. It is formed by the SEPTAL NASAL CARTILAGE, parts of skull bones (ETHMOID BONE; VOMER), and membranous parts.
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Nasal Sprays
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D059085 |
[Pharmacologic agents delivered into the nostrils in the form of a mist or spray.
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Nasal Surgical Procedures
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D059747 |
[Surgical operations on the nose and nasal cavity.
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Nasoalveolar Molding
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D000084982 |
[A presurgical facial orthotic treatment for patients with bilateral and unilateral CLEFT LIP and CLEFT PALATE. The treatment uses NASOALVEOLAR MOLDING DEVICES designed to reduce the cleft gap, reposition the alveolar segments to improve nasal symmetry, shaping and lessening the severity of the cleft deformity before primary palatoplasty, cheiloplasty, and RHINOPLASTY.
] |
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Nasolabial Fold
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D060052 |
[A skin crease on each side of the face that runs from the outer corners of the nose to the corner of the mouth. It is a common site of PLASTIC SURGERY.
] |
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Nasolacrimal Duct
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D009301 |
[A tubular duct that conveys TEARS from the LACRIMAL GLAND to the nose.
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Nasopharyngeal Carcinoma
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D000077274 |
[A carcinoma that originates in the EPITHELIUM of the NASOPHARYNX and includes four subtypes: keratinizing squamous cell, non-keratinizing, basaloid squamous cell, and PAPILLARY ADENOCARCINOMA. It is most prevalent in Southeast Asian populations and is associated with EPSTEIN-BARR VIRUS INFECTIONS. Somatic mutations associated with this cancer have been identified in NPCR, BAP1, UBAP1, ERBB2, ERBB3, MLL2, PIK3CA, KRAS, NRAS, and ARID1A genes.
] |
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Nasopharyngeal Diseases
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D009302 |
[Pathological processes involving the NASOPHARYNX.
] |
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Nasopharyngeal Neoplasms
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D009303 |
[Tumors or cancer of the NASOPHARYNX.
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Nasopharyngitis
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D009304 |
[Inflammation of the NASOPHARYNX, usually including its mucosa, related lymphoid structure, and glands.
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Nasopharynx
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D009305 |
[Two openings between the nose and the nasopharynx.
, The top portion of the pharynx situated posterior to the nose and superior to the SOFT PALATE. The nasopharynx is the posterior extension of the nasal cavities and has a respiratory function.
] |
