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Urinary Tract
Human Bio
8
Biology
Undergraduate 2
11/13/2011

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Term
Kidneys Purpose
Definition
Homeostasis:
Regulate water levels,
regulate nitrogenous wastes and other solutes (Sodium, chloride, potassium, calcium, hydrogen ions, creatinine)
Term
Nitrogen from ______ _______ is made into urea in the liver and transported to the kidney as waste.
Definition
amino acids
Term
Kidneys have two principal regions
Definition
Cortex: outer portion of the kidney
Medulla: inner region of the kidney
Term
Ureters
Definition
Transport urine from kidneys to bladder
Term
Urethra
Definition
Carries urine from body
Two sphincters control urination
Term
Nephrons are
Definition
functional units of kidney
Term
Nephron Purpose
Definition
remove approximately 180 liters of fluid from the blood daily, and return most of it, minus the wastes that are excreted
Term
Functions of Urinary System
Definition
Regulate Nitrogenous Wastes
Regulate Water Levels
Excretion
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