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9 terms

Excretory System

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Excretory System
The system in the body that collects wastes produced by cells and removes the wastes from the body.
Excretion
The removal of wastes
Urea
The chemical that comes from the breakdown of proteins
Kidneys
The two major organs of the excretory system, which eliminate urea, excess water, and some other waste materials
Urine
A watery substance produced by the kidneys
Ureters
Two narrow tubes that carry the urine to the urinary bladder
Urinary Bladder
A saclike muscular organ that stores urine
Urethra
The tube where urine exits the body
Nephron
Tiny filtering structures in the kidneys that remove waste from the blood and create urine.