1. Leukocytes
White Blood Cells

2. Leukocytes - WBC
have nuclei and usual organelles
amoeboid
motion

3. capable of slipping in and out of blood vessels

4. respond to chemicals released by injured cells and other WBC’s
body is able to double normal # of WBC’s in a few hours in response to infection

5. Types of WBC’s

7. Granulocytes
lobed nuclei
cytoplasmic granules

8. 1. Neutrophils most numerous
are phagocytes partial to bacteria and fungus during acute infection

9. 2. Basophiles least numerous
release chemicals that help migration of other WBC’s to site

10. 3. Eosinophils
increase numbers due to parasites, protozoans, and allergies
phagocytes and release chemicals that counteract allergic reaction

11. Agranulocytes
after being formed in bone marrow they migrate to lymph tissue and reproduce further there

12. 1. Lymphocytes most in lymph tissue T cells act on viruses and tumors
B cells form plasma cells which make antibodies

13. 2. Monocytes
phagocytes
macrophages

15. Like RBC’s., WBC’s form from hemocytoblasts.
The cells that form agranulocytes migrate to lymph tissues.
The granulocytes form in bone marrow.

16. Leukemia
“white blood”

17. Leukemia “white blood”
group of WBC cancers
WBC’s are overproduced, unspecialized, and suppress normal bone marrow production

19. may be chronic (usually adults) or acute (children) treated with:
Radiation
Chemotherapy
Bone marrow
transplants

20. Mononucleosis

24. Mononucleosis highly contagious virus
usually in children and young adults
no cure - usually lasts a few weeks
large amounts of abnormal monocytes and lymphocytes