1. CIRCULATORY SYSTEM

2. 1- Heart. 2- Blood vessels.

3. THE HEART

4. WALL OF THE HEART

7. PURKINJE FIBERS IN MODERATOR BAND (T.S.)

8. MODERATOR BAND (T.S.)

10. MODERATOR BAND (L.S.)

12. ORDINARY CARDIAC MUSCLE

13. CARDIAC MUSCLE

14. WALL OF THE HEART A- Endocardium:1- Endothelium 2- Subendothelial C.T. 3- Subendocardial layer B- Myocardium C- Epicardium: 1- Mesothelium 2- C.T. layers

15. WALL OF BLOOD VESSEL

16. 1- Tunica Intima: a- Endothelium. b- Subendothelial C.T. layer. c- Internal elastic lamina (+ or -) 2- Tunica Media. 3- Tunica adventitia.

17. BLOOD VESSELS 1- Arteries 2- Blood capillaries. 3- Veins.

18. ARTERIES (1)Elastic arteries. (2)Muscular arteries (medium-sized arteries). (3)Arterioles.

19. ELASTIC ARTERY

21. MUSCULAR ARTERY (MEDIUM-SIZED ARTERY)

22. MEDIUM-SIZED ARTERY

23. ARTERIOLE

26. TERMINAL ARTERIOLE

28. BLOOD CAPILLARIES

29. Types: 1- Continuous capillaries 2- Fenestrated capillaries a- with diaphragm b- without diaphragm 3- Sinusoidal capillaries

30. Capillary wall

31. BLOOD CAPILLARIES

32. CONTINUOUS CAPILLARY

35. FENESTRATED CAPILLARY

37. VEINS 1- Large veins. 2- Medium-sized veins. 3- Venules.

38. VENULE

39. MEDIUM-SIZED ARTERY & VEIN

40. MEDIUM-SIZED VEIN

42. VALVE:

43. VALVE

45. VENA CAVA

46. BEST WISHES