Urinary System 2

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Urinary System 2

  1. 1. Homeostasis <ul><li>The kidney </li></ul><ul><li>The gross structure of the urinary system </li></ul>
  2. 2. Introduction <ul><li>• The urinary system rids the body of waste materials and controls the volume and composition of body fluids. </li></ul><ul><li>Highly specialized cells in the kidneys are essential to these processes. </li></ul>
  3. 3. Introduction <ul><li>• The urinary system is composed of paired kidneys and ureters, the urinary bladder, and the urethra. </li></ul><ul><li>• Urine is produced in the kidneys, and then drains through the ureters to the urinary bladder, where the urine is stored. </li></ul><ul><li>Urine is eliminated from the body through the urethra. </li></ul>
  4. 4. The Urinary System
  5. 5. The Urinary System The kidney
  6. 6. The Urinary System The kidney ureter
  7. 7. The Urinary System The kidney ureter bladder
  8. 8. The Urinary System The kidney ureter bladder urethra
  9. 9. The Urinary System The kidney ureter bladder urethra dorsal aorta
  10. 10. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava
  11. 11. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava renal vein
  12. 12. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava renal vein with renal artery behind
  13. 13. The Urinary System The kidney ureter bladder urethra dorsal aorta inferior vena cava renal vein with renal artery behind adrenal gland
  14. 14. Kidney function <ul><li>Each bean-shaped kidney is embedded in a fatty adipose capsule. </li></ul><ul><li>• The kidneys are retroperitoneal, lying against the dorsal body wall in the upper abdomen. </li></ul>
  15. 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. 16. The kidney
  17. 17. The kidney ureter
  18. 18. The kidney ureter renal pelvis
  19. 19. The kidney ureter renal pelvis renal cortex
  20. 20. The kidney ureter renal pelvis renal cortex renal medulla
  21. 21. The kidney ureter renal pelvis renal cortex renal medulla pyramids
  22. 22. Kidney blood supply
  23. 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. 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.

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