Ch26NotesFall10 - Ch 26 The Urinary System The general functions of the major organs of the urinary system are indicated at right Fig 26-1 p 966

Ch26NotesFall10 - Ch 26 The Urinary System The general...

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1 Ch. 26 – The Urinary System The general functions of the major organs of the urinary system are indicated at right Fig. 26-1, p. 966 Specific functions of the urinary system • 1. Excretion = the removal of organic wastes from body fluids • 2. Elimination = the discharge of wastes to the external environment • 3. Regulation of plasma volume and solute concentration , by… Regulating blood volume and pressure , by… Adjusting the volume of water in the urine Secreting erythropoietin (EPO) Secreting renin Regulating plasma concentrations of Na + , K + , Cl - , Ca 2+ , etc. Helping to regulate blood pH , by… Excreting or conserving H + and HCO 3 - Conserving valuable nutrients Assisting the liver in detoxifying poisons and deaminating amino acids
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