The document discusses the different types of white blood cells, including lymphocytes (T cells and B cells), monocytes, eosinophils, basophils, and neutrophils. It provides the percentage of each type of white blood cell in blood and their relative sizes. Each white blood cell type has a different role, such as lymphocytes forming immunity, monocytes becoming macrophages, eosinophils responding to parasites and allergies, and neutrophils being the first to infection sites.

1. Immunology
Blood Cells

3. White Blood Cells in Action

5. Lymphocyte

6. Lymphocyte
Numbers: 20-25%
Size: RBC
Forms
T Cells
B Cells
http://www.youtube.com/watch?v=qf0oCfRytTM

7. Monocyte

8. Monocyte
Numbers: 5%
Size: Twice RBC
Become macrophages
http://www.youtube.com/watch?v=VGsw7FEXyeA

9. Eosinophil

10. Eosinophil
Numbers: 3%
Size: Larger than 1 RBC
Respond to parasites and allergies
http://www.youtube.com/watch?feature=endscreen&NR=1&v=Z3fl9ew72Kw

11. Basophil

12. Basophil
Numbers: 1%
Size: RBC
Produces Histamine and Heparin
http://www.youtube.com/watch?v=RmB8_EMiSlM

13. Neutrophil

14. Neutrophil
Numbers: 65%
Size: Almost two RBC
First to infection site
Often die eating bacteria
Dead cells = pus
http://www.youtube.com/watch?v=u2ji6EWS9G4

15. REVIEW
http://www.youtube.com/watch?v=wzHIEzcN6Ig