1. Anatomy and Physiology 2211K Lecture Five

2. Slide 2 – Urinary system

3. Slide 3 – Urinary system’s function – filtering the blood

4. Slide 3 – Urinary system’s function – regulation of blood volume

5. Slide 3 – Urinary system’s function – regulation of ions

6. Slide 6 – Urinary system’s function – pH regulation

7. Slide 7 – Urinary system’s regulation - hormonal

8. Slide 8 – Urinary system’s regulation – Vitamin D

9. Slide 9 - Kidneys

10. Slide 10 - Nephron

11. Slide 11 – Histology of the nephron (glomerulus)

12. Slide 12 – Histology of the nephron (Bowman’s capsule)

13. Slide 13 – Histology of the nephron (Proximal convoluted tubule)

14. Slide 14 – Histology of the nephron (distal convoluted tubule)

15. Slide 15 – Histology of the nephron – juxtaglomerular apparatus

16. Slide 16 – Blood flow of the nephron and the kidneys

17. Slide 17 – Ureter and the urinary bladder

18. Slide 11 – urine formation

19. Slide 19 – Urea cycle

20. Slide 20 – Uric acid production

21. Slide 21 – Renal filtration

22. Slide 22 – Renal fraction Renal plasma flow rate - the actual flow of plasma reaching the kidneys is equal to the renal blood flow rate multiplied by the portion of the blood that is made up of plasma – which is approximately 55% 1176mL/min x 0.55 = 646 mL plasma /min Filtration fraction – the actual part of the plasma that is being filtered through the glomerulus and the renal capsule. Filtration fraction averages 19% of the plasma flowing through the kidneys 646 mL plasma/min x 0.19 = 123.5 mL plasma per minute

23. Slide 23 – Urine formation - glomerulus

24. Slide 23 – Filtration pressure

25. Slide 23 – reabsorption – proximal convoluted tubule

26. Slide 25 – Reabsorption – loop of Henle

27. Slide 26 – Ascending loop of Henle

28. Slide 26 – reabsorption – distal convoluted tubule

29. Slide 28 – Urine concentration