Blood Circulation Study Guide

Unit 8 Study Guide

1. How many liters of blood does the average adult have? Five

2. What are the components of blood? 45 percent is red blood cells, white blood cells and platelets and 55 percent is plasma

3. What does the hematocrit measure? Number of cells/volume

4. What percentage of blood are cells? 45

5. What percentage of blood is made of plasma? 55

6. What do erythrocytes look like and what is their function? Biconcave disk, 7.5 micrometers- they transport gas

7. How do mature erythrocytes differ from immature ones? When they are mature, they do not have a nucleus

8. What is a normal RBC Count? 4,600,000 per cubic centimeter

9. What makes blood red? Erythrocytes and iron

10. How long does the average RBC live? 120 days

11. What hormone controls the rate of rbc synthesis? Erythropoietin

12. What element is part of a red blood cell? Iron

13. What is sickle-cell anemia and what is its cause? Misshaped red blood cells; the cause of it are because there are too many red blood cells destroyed.

14. What are the causes of Anemia? If there are too few red blood cells made or if there are too many destroyed

15. What is the difference between sickle cell anemia and sickle trait? Sickle trait is less harmful, and can only be passed on if both parents have it.

16. What percentage of white blood cells are eosinophils? 1-3 percent granulocytes

17. What is a Lymphocyte? Small, round long-lived-granulocytes

18. What is a chemical that stimulates cells to produce antibodies? Antigens

19. What percent of blood are lymphocytes? 25-33 percent

20. What is a normal white Blood Cell Count? 5,000- 10,000

21. What does a rise in WBCS indicate? A decrease? A rise indicates infection with the leukocytes and a decrease indicates viral infections

22. What is a normal WBC differential? 4,500- 10,000

23. What is pus? Made of leukocytes,...