4. The Urinary System

5. The Urinary System The kidney

6. The Urinary System The kidney ureter

7. The Urinary System The kidney ureter bladder

8. The Urinary System The kidney ureter bladder urethra

9. The Urinary System The kidney ureter bladder urethra dorsal aorta

10. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava

11. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava renal vein

12. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava renal vein with renal artery behind

13. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava renal vein with renal artery behind adrenal gland

15. Kidney function • An adrenal gland, which is part of the endocrine system, lies on top of each kidney. • Several structures enter or exit the concave surface of the kidney at the renal hilus, including the ureter and the renal vein, which drains into the inferior vena cava.

16. The kidney

17. The kidney ureter

18. The kidney ureter renal pelvis

19. The kidney ureter renal pelvis renal cortex

20. The kidney ureter renal pelvis renal cortex renal medulla

21. The kidney ureter renal pelvis renal cortex renal medulla pyramids

22. Kidney blood supply

23. Kidney blood supply • When the renal vein is removed and the kidney is shown in frontal section, you can see the deeper renal artery and its connection to the abdominal aorta.

24. Kidney blood supply • Together, these vessels provide the kidneys with a rich blood supply under high pressure that allows them to continuously filter and cleanse the blood.