1. Cardiovascular System & Blood Chapters 8 & 7

2. Cardiovascular system parts

3. Functions of cardiovascular system

4. Cardiovascular system: heart

7. What is the purpose of the heart valves?

8. AV valves

9. Double circuits – pulmonary – systemic

10. Flow of blood thru human circ sys. R ventricle (pulmonary circuit) pulmonary arteries lung capillaries pulmonary veins L atrium L ventricle (systemic circuit) aorta (branches) – coronary arteries, upper & lower body body capillaries vena cava (superior or inferior) R atrium R ventricle

11. Electrical activity of the heart the cardiac conduction system 1. sinoatrial (SA) node 2. AP reaches atrioventricular (AV) node

12. Electrical activity of the heart 3. AP enters atrioventricular (AV) bundle & branches 4. AP reaches Purkinje fibers

13. Conduction system of the heart

14. Electrocardiogram (ECG/EKG) P wave: QRS complex: T wave:

15. Cardiac cycle the repeating pattern of contraction & relaxation of the heart – systole: – diastole:

16. Cardiac output determined by stroke volume... and heart rate

17. Cardiovascular system: blood vessels arteries veins capillaries

18. Cardiovascular system: blood vessels arteries

19. Cardiovascular system: blood vessels veins

20. Cardiovascular system: blood vessels capillaries

21. More on capillaries... interstitial fluid:

22. Comparison of blood vessels

24. BP decreases in BV the farther from the heart... arteries  veins

25. Blood pressure two parts to a blood pressure reading – systolic pressure – diastolic pressure

26. High & low blood pressure High BP (hypertension) Low BP (hypotension)

27. Regulation of blood volume

28. Regulation of blood volume by kidneys

29. Cardiovascular disease all diseases of the heart and blood vessels

30. “Bad” & “Good” cholesterol “bad” cholesterol is LDL (low-density lipoprotein) “good” cholesterol is HDL (high-density lipoprotein)

31. Cardiovascular system: blood plasma ~ 55% formed elements ~ 45%

32. Cardiovascular system: plasma proteins albumins ~ 54% globulins ~ 38% fibrinogen ~7%

33. Hemopoiesis: blood cell formation

34. Hemopoiesis

35. Hemostasis: blood clotting

36. Injured blood vessel:

37. Red blood cell antigens & blood typing antigens:

38. Red blood cell antigens & blood typing antibodies

39. Antigens & antibodies of human blood types

40. Blood type & transfusions

41. Red blood cell antigens & blood typing Rh factor

42. Hemolytic disease of newborn (HDN)