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Natural Science Disciplines
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D010811 |
[The sciences dealing with processes observable in nature.
] |
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Natural Springs
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D060985 |
[Water that emerges to the surface of the earth from underground.
] |
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Nature
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D019368 |
[The system of all phenomena in space and time; the totality of physical reality. It is both a scientific and philosophic concept appearing in all historic eras. (Webster 2d; Dr. James H. Cassedy, NLM History of Medicine Division)
] |
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Naturopathy
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D009324 |
[A drugless system of therapy, making use of physical forces such as air, light, water, heat, massage. Treatments are often diet- and nutrition-oriented with attention given to the patient's personal history and lifestyle. (From Cassileth, Alternative Medicine Handbook, 1998, p329)
] |
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Nausea
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D009325 |
[An unpleasant sensation in the stomach usually accompanied by the urge to vomit. Common causes are early pregnancy, sea and motion sickness, emotional stress, intense pain, food poisoning, and various enteroviruses.
] |
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Nautilus
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D049850 |
[The sole genus in the family Nautilidae, order Nautilida, comprised of CEPHALOPODS with spiral external shells that are separated into chambers.
] |
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Naval Medicine
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D009326 |
[The practice of medicine concerned with conditions affecting the health of individuals associated with the marine environment.
] |
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Neanderthals
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D059125 |
[Common name for an extinct species of the Homo genus. Fossils have been found in Europe and Asia. Genetic evidence suggests that limited interbreeding with modern HUMANS (Homo sapiens) took place.
] |
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Near Drowning
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D015701 |
[Non-fatal immersion or submersion in water. The subject is resuscitable.
] |
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Near Miss, Healthcare
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D000067491 |
[Event that presented a risk but did not result in a patient harm.
] |
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Nebivolol
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D000068577 |
[A cardioselective ADRENERGIC BETA-1 RECEPTOR ANTAGONIST (beta-blocker) that functions as a VASODILATOR through the endothelial L-arginine/ NITRIC OXIDE system. It is used to manage HYPERTENSION and chronic HEART FAILURE in elderly patients.
] |
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Nebramycin
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D009328 |
[A complex of antibiotic substances produced by Streptomyces tenebrarius.
] |
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Nebraska
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D009329 |
[State bounded on the north by South Dakota, on the east by Iowa and Missouri, on the south by Kansas and Colorado, and on the west by Colorado and Wyoming.
] |
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Nebulizers and Vaporizers
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D009330 |
[Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
] |
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Necator
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D009331 |
[A genus of intestinal parasite worms which includes one of the most important hookworms of man, NECATOR AMERICANUS. The only other known species, N. suillus, has been recovered from pigs.
] |
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Necator americanus
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D017221 |
[A common parasite of humans in the moist tropics and subtropics. These organisms attach to villi in the small intestine and suck blood causing diarrhea, anorexia, and anemia.
] |
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Necatoriasis
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D009332 |
[Infection of humans or animals with hookworms of the genus NECATOR. The resulting anemia from this condition is less severe than that from ANCYLOSTOMIASIS.
] |
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Neck
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D009333 |
[The part of a human or animal body connecting the HEAD to the rest of the body.
] |
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Neck Dissection
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D037981 |
[A surgical operation for head and neck malignancies, most of which are squamous cell carcinomas. The neck is opened laterally, the majority of the sternocleidomastoid muscle is removed, as are the regional cervical lymph nodes, the jugular vein, the spinal accessory nerve, the submaxillary gland and most of the parotid gland. There are several modifications. (From Segen, Dictionary of Modern Medicine, 1992, p605)
, Dissection in the neck to remove all disease tissues including cervical LYMPH NODES and to leave an adequate margin of normal tissue. This type of surgery is usually used in tumors or cervical metastases in the head and neck. The prototype of neck dissection is the radical neck dissection described by Crile in 1906.
] |
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Neck Injuries
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D019838 |
[General or unspecified injuries to the neck. It includes injuries to the skin, muscles, and other soft tissues of the neck.
] |
