Category: G
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Goldblatt kidney
Kidney injury and secondary hypertension due to inadequate kidney perfusion. This condition may occur as a result of renal artery stenosis.
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Gold alloy
An alloy of gold with copper, silver, platinum, or other metals added for strength or hardness. Pure gold is rated 24 carats. A gold alloy that contains other metals is less than 24 carats. Thus, 18 parts of gold mixed with 6 parts of another metal would be rated as 18-carat gold.
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Godfrey’s test
A test to identify a tear of the posterior cruciate ligament. With the patient lying supine and the hips flexed to 90 degrees, the examiner lifts both of the patient’s lower legs and holds them parallel to the table. The relative position of the lower legs is then observed. Inferior displacement (a downward sagging) of…
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Gnotobiotics
The study of animals that have been raised in germ controlled or germ-free surroundings. This passage pertains to the development of living beings in the absence of external organisms or solely in the company of familiar organisms. The term applies to the growth of plants and animals that are free from germs as well as…
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Gnosia
The perceptive faculty of recognizing persons, things, and forms.
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Gnathostomiasis
A form of visceral larva migrans infection of human tissues caused by the nematode parasite of dogs and cats, Gnathostoma spinigerum. Acquisition is by ingestion of undercooked fish and poultry containing the larvae. The parasite migrates through various body tissues and causes a transient inflammatory response and possibly abscess formation. If the brain is invaded,…
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Gnathocephalus
A malformed fetus in which the head consists principally of the jaws.
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Gnat
Any of a number of small insects belonging to the order Diptera, suborder Orthorrhapha, including black flies, midges, and sandflies. The term applies generally to insects smaller than mosquitoes.
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Glyoxylic acid
An acid produced by the action of glycine oxidase on glycine or sarcoine.
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Glyoxalase
An enzyme that catalyzes the conversion of methylglyoxal to lactic acid by the addition of water.