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Excretory System
lalalallal
8
Science
6th Grade
01/13/2010

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Term
excretion
Definition
The process by which wastes are removed from the body
Term
urea
Definition
A chemical that comes from the breakdown of proteins
Term
kidney
Definition
A major organ of the excretory system which removes urea and other wastes from the blood
Term
urine
Definition
A watery fluid produced by the kindneys that contains urea and other fluids
Term
ureter
Definition
A narrow tube that carries urine from one of the kidneys to the urinary bladder
Term
urinary bladder
Definition
a sac-like muscukar organ that stores urine until it is eliminated from the body
Term
nephron
Definition
a small filtering structure found in the kidneys that removes waste from blood and produces urine
Term
urethra
Definition
A small tube through which urine flows from the body
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