1. BLOOD

2. 66. Blood fluid tissue made of liquid and cells

3. Blood About 5 liters Travels about 40 mph through vessels

4. Blood

5. A. Plasma – yellowish liquid that blood cells float around in

6. Plasma a. Makes up – 55% of blood b. Made of – 90% water, proteins

7. B. Erythrocytes - Red blood cells 5 million red blood cells in a drop of blood

8. Erythrocytes a. Shape - Concave disc, allows them to bend and twist

9. Erythrocytes b. Not true cells, lack a nucleus

10. Erythrocytes c. Job – carry O₂ to body cells, carry CO₂ to lungs to be released

11. Erythrocytes d. Hemoglobin – red protein that binds to O₂ and CO₂

12. Hemoglobin Oxygen-rich – bright red color Oxygen-poor – dark maroon color

13. Life span e. Constantly wear out (120 days) and remade in bone marrow About 2 million die every second

14. C. Leukocytes – white blood cells 7,000 white blood cells in a drop of blood

15. Leukocytes a. Size - larger than Red Blood Cells

16. Leukocytes b. Job – guard body against disease

17. Types of Leukocytes

18. Monocytes “phagocytes”, engulf bacteria and old red blood cells

19. Lymphocytes Produce antibodies that fight disease and destroy infected cells

20. Eosinophils Kill parasitic worms

21. D. Thrombocytes - platelets Half a million platelets in a drop of blood

22. Thrombocytes a. Not real cells, pieces of cytoplasm from larger cells

23. Thrombocytes b. Job – essential for blood clotting

24. c. Clotting Process Platelets clump to the injured area Release chemicals that react with proteins in the blood

25. Clotting Process Creates fibrin – threads that intertwine and form a net Blood cells are stopped and scab forms

26. Blood Types

27. E. Blood Type Determined by genes, and presence or absence of antigens

28. Type A a. Has A antigen

29. Type B b. Has B antigen

30. Type AB c. Has both A and B antigens

31. Type O d. Has neither A or B antigens

32. How do you find your blood type?

33. Importance e. If blood transfusion is needed

34. Blood TypeCan Donate ToCan Receive From

35. Blood Type Identified not only by letter but also by being positive or negative

36. Rh factor f. The presence or absence of an Rh antigen Rh+ = Have the Rh antigen Rh- = Don’t have the Rh antigen

38. Where are you at?

39. F. Blood Pressure Measurement of force applied to the artery walls

40. Blood Pressure a. Systolic pressure – maximum pressure in an artery-beating and pumping b. Diastolic pressure – is the lowest pressure in an artery-resting

41. Blood Pressure c. Normal – 120/80

42. Other Circulatory Disorders

43. Hypertension a. High blood pressure, over works the heart and damages the arteries

44. Causes (Pick 4) Smoking Being overweight Lack of physical activity Too much salt in the diet Too much alcohol consumption (no more than 1 to 2 drinks per day) Stress Older age Genetics Family history of high blood pressure

45. Anemia b. Fatigue from lack of oxygen

46. Anmeia Hemorrhagic – too few red blood cells

47. Anmeia Iron deficiency – too little iron on RBCs for oxygen to attach to

48. Anmeia Sickle cell – genetic, sickle shaped RBCs clot easily

49. c. Hemophilia Genetic, blood doesn’t clot

50. d. Leukemia Cancer of the blood, produces immature WBCs