The urinary system has several important functions: 1. It filters waste and excess water from the blood and removes it from the body through urine. 2. It maintains the chemical consistency of the blood. 3. Its main organs - the kidneys, ureters, urinary bladder, and urethra - work together to produce, transport, store, and eliminate urine from the body.

1. The Urinary System PART 1

5. Relationship of the Kidneys to Vertebra and Ribs Figure 23.1b

6. Position of the Kidneys with in the Posterior Abdominal Wall Figure 23.2a

8. Summary of Blood Vessels Supplying the Kidney Figure 23.3c

10. Internal Anatomy of the Kidneys Figure 23.3b

13. Basic Kidney Functions Figure 23.4

14. The Urinary System PART 2

15. Uriniferous Tubule Figure 23.5a

17. Renal Corpuscle and the Filtration Membrane Figure 23.6a

18. Renal Corpuscle and the Filtration Membrane Figure 23.6c

20. Micrograph through the Renal Medulla Figure 23.7

23. Classes of Nephron Figure 23.9a

26. The Urinary System PART 3

28. Juxtaglomerular Apparatus Figure 23.10

30. Microscopic Structure of the Ureter Figure 23.12

34. Histology of the Urinary Bladder Figure 23.15a, b

35. Structure of the Urinary Bladder and Urethra Figure 23.16a

36. Structure of the Urinary Bladder and Urethra Figure 23.16b

40. Micturition Figure 23.17

43. Development of the Urinary Organs Figure 23.18a,b

44. Development of the Urinary Organs Figure 23.18c, d