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Excretory system

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Transcript

  • 1. THE EXCRETORY SYSTEM Controlling the Internal Environment
  • 2. Gross Anatomy of System• Pair of kidneys – Retroperitoneal• Pair of ureters• Urinary bladder• Urethra
  • 3. Gross Anatomy
  • 4. Location of Kidneys Retroperitoneal
  • 5. Retroperitoneal Location
  • 6. The Kidney Pyramid Papilla Cortex MedullaHilum Column Calyx Pelvis Ureter
  • 7. Functions of Excretory System• Regulate body fluids – Volume, pH, composition• Remove metabolic wastes from blood• Control rate of RBC formation• Regulate blood pressure• Regulate absorption of calcium
  • 8. Nephron PCTBowman’s DCTcapsule Vasa recti Glomerulus Ascending Descending tubule Tubule Collecting duct
  • 9. The Blood Supply to the Kidney
  • 10. Renal Corpuscle
  • 11. Renal Corpuscle
  • 12. Podocyte and the Filtration Process
  • 13. Renal Corpuscle
  • 14. Function of Renal Corpuscle• Bowman’s capsule• Glomerulus – Filtration of blood • Water • Electrolytes • Glucose • Urea
  • 15. Filtration Slits
  • 16. Nephron
  • 17. TubulesProximal Tubule Distal Tubule
  • 18. Function of Tubules• Reabsorption of glucose – Proximal convoluted tubule• Reabsorption of water – PCT, descending tubule, collecting duct• Reabsorption of salts – PCT, ascending tubule, distal con. tub.• Reabsorption of urea – PCT, collecting duct
  • 19. Collecting DuctsCuboidal Epithelium lining ducts
  • 20. Nepron with Vasa Recta
  • 21. Function of Tubules• Reabsorption of glucose – Proximal convoluted tubule• Reabsorption of water – PCT, descending tubule, collecting duct• Reabsorption of salts – PCT, ascending tubule, distal con. tub.• Reabsorption of urea – PCT, collecting duct

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