A-Non-Specific immune system :
a-Monocytes:
-Horseshoe-shaped nucleus
-cross capillary walls and become macrophages in tissues
-have phagocytic abilities
b-Granuolocytes:
-Also called polymorphonuclear cells
-cross capillary wall
-have a phagocytic ability
c-Lymphocytes:
---> B-lymphocytes:
-round nucleus
-secret antibodies
--->T-lymphocytes:
-round nucleas
-killer cells

http://www.leukine.com/patients/benefits_leukine_therapy/cancer_therapy_immune_system.html
Where do these cells originate and where do they mature ?
