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tubule

A very small tube in the body, most often one of the tiny tubes in the kidney that turn filtered fluid into urine.

TOO-byool noun

What it means

In each nephron of the kidney, the glomerulusgloh-MAIR-yuh-lusA tiny ball of capillaries in the kidney that filters the blood as the first step in making urine.Full entry filters the blood, and the renal tubule then takes back the water, glucose, sodium and other things the body needs and adds wastes to the urine. Diuretics work on different parts of the tubule: furosemidefyoo-ROH-suh-mideA loop diuretic: a drug that makes the kidneys remove more salt and water from the body.Full entry , for example, acts on the loop of Henle. The testes also have tubules, where sperm are made.

At a glance

Spanishtúbulo
Also writtentubules

Related terms

furosemide

A loop diuretic: a drug that makes the kidneys remove more salt and water from the body.

diuretic

A drug that makes the kidneys pass more water and salt out of the body as urine.

renal

Relating to the kidneys.

glomerulus

A tiny ball of capillaries in the kidney that filters the blood as the first step in making urine.

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