| A | B |
|---|
| helper T cells | produce interleukin II |
| cytotoxic T cells | attach a cell containing a virus |
| macrophage | phagocytoses |
| B lymphocyte | proliferates to form plasma cells and memory cells |
| plasma cells | produces circulating antobodies |
| memory cells | involved in secondary immune response |
| suppressor T cells | used when attack has been successful |
| neutrophil | 60 to 70% of phagocytotes |
| monocytes | transformed into macrophages |
| compliment | attacks and lyses antigen |
| mast cell | contains histamines released when an allergen binds to the antibodies |
| interferon | protects a neighboring cell from viral infection |
