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BIOLOGY II URINARY SYSTEM ACTIVITY #1 NAME_____________________ DATE___________HOUR_____ ANATOMY OF THE URINARY SYSTEM OBJECTIVES : 1. List and describe the major functions of the urinary system. (p. 518) 2. Identify the parts of the urinary system and their functions (pp. 518 – 519, 531 – 533) 3. Describe the internal anatomy of the kidney. (pp. 519 – 520) 4. Trace the path of blood flow through the kidney. (pp. 523 – 524) URINARY SYSTEM – MAJOR FUNCTIONS Regulates blood volume and blood pressure • Adjusts volume of water lost in urine • Releases hormones Regulates concentrations of ions in plasma • Ions – K+, Na+ Cl-, and Ca2+ • Controls amount lost in urine Homeostasis of blood pH • Stabilizes blood pH • Controls loss of H+ and bicarbonate ions (HCO3-) Conserves nutrients – prevents excretion of nutrients (amino acids, glucose, etc.) Excretory function – removes organic waste products (urea and uric acid) Urinary System Activity #1 page 1 URINARY SYSTEM – MAJOR STRUCTURES Urinary System Activity #1 page 2
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