Category: G
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Gas distention
Accumulation of excessive gas within the lumen of the gastrointestinal tract, the peritoneum, or the bowel wall. Treatment may be surgical or nonsurgical, depending on the etiology.
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Gartner’s duct
A small duct lying parallel to the uterine tube. It is a vestigial structure representing the persistent mesonephric duct.
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Garre’s disease
Chronic sclerosing osteitis or osteomyelitis due to pyogenic cocci.
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Garren gastric bubble
A deflated bladder that is placed into the stomach endoscopically and then inflated; used to treat morbid obesity by reducing the effective volume of the stomach and thereby decreasing hunger.
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Gardos channel
A cell membrane pore that regulates intracellular volume with a pump that forces potassium ions out of the cell. The pump is activated by calcium ions.
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Gardnerella vaginalis
One of several bacteria implicated in bacterial vaginosis in women. The bacilli are usually gram negative, but in older cultures the bacilli may stain variably (some gram-negative and some falsely gram-positive). This refers to a type of bacteria frequently detected in the vaginal secretion of females suffering from bacterial vaginosis.
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Gantry
The housing for the imaging source and detectors into which the patient is placed for computed tomography and magnetic resonance imaging. The adjustable framework on a computed tomography (CT) machine that houses the x-ray tube, collimators, and detectors. The apparatus utilized in a CT scan, often referred to as a couch or table, serves as…
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Ganglioplegic
Any drug that prevents transmission of nervous impulses through sympathetic or parasympathetic ganglia. Such drugs have limited therapeutic applicability because of undesired side effects. They are useful in treating hypertensive crises. Because they decrease blood pressure, they are used to limit bleeding during certain surgical procedures.
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Ganglioplegia
The failure of nervous stimuli to be transmitted by a ganglion.
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Ganglionostomy
Surgical incision of a simple ganglion. Ganglionectomy is generally more efficacious when feasible.