Category: G
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Glycogen granule
One of the minute particles of glycogen seen in liver cells following fixation.
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Grant writing
The drafting of a written proposal seeking financial support for a demonstration or research project in the health sciences.
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Grandiose
In psychiatry, concerning one’s unrealistic and exaggerated concept of self-worth, importance, wealth, and ability.
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Gram molecule
The weight in grams of a substance equal to its molecular weight.
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Gram-equivalent
In chemistry, the mass in grams of a substance that will react with 1 g of hydrogen.
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Graham Steell’s murmur
A high-pitched diastolic murmur heard best along the left sternal border. It is caused by backflow (regurgitation) of blood through the dilated pulmonary valve of the heart. This type of murmur is usually associated with severe pulmonary hypertension.
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Graham’s law
A law stating that the rate of diffusion of a gas is inversely proportional to the square root of its molecular mass (molecular weight).
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Graefe’s sign
Failure of the upper lid to follow a downward movement of the eyeball when the patient changes is or her vision from looking up to looking down. This finding, referred to colloquially as “lid lag,” is seen in Graves’ disease (hyperthyroidism) with exophthalmos. In Graves’ disease, the upper eyelid lags behind the downward rotation of…
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Graduated tenotomy
Partial surgical division of a tendon of an eye muscle.
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Gradenigo’s syndrome
Suppurative otitis media, pain in the distribution of the trigeminal nerve, and abducens palsy, typically associated with infection or cancer at the base of the skull.