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glomerulus
(redirected from glomeruli)

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glomerulus

In the kidney, the cluster of blood capillaries at the threshold of the renal tubule, or nephron, responsible for filtering out the fluid that passes down the tubules and ultimately becomes urine. In the human kidney there are approximately one million tubules, each possessing its own glomerulus.

The structure of the glomerulus allows a wide range of substances including amino acids and sugar, as well as a large volume of water, to pass out of the blood. As the fluid moves through the tubules, most of the water and all of the sugars are reabsorbed, so that only waste remains, dissolved in a relatively small amount of water. This fluid collects in the bladder as urine.


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? Mentioned in ? References in periodicals archive
 
The aging process has deleterious effects on renal function, with decreases in renal weight and number of glomeruli in subjects older than 50.
In the kidneys, sometimes rare mononuclear leukocytes in a few glomeruli were positive.
Further study of the mutant mice revealed that the animals had smaller-than-average glomeruli, the odor-detecting units of the nose, but the rodents had many more of them than usual.
 
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