The immune system

7. Division of a specific B cell by mitosis after activation
9. Cloned helper T cells 1. stimulate phagocytosis by phagocytes 2. Stimulate B cells to divide 3. Activate cytotoxic T cells and 4. ................
10. A type of white blood cell e.g. phagocyte, B cell, T cell
12. Fuses with the phagosome to release hydrolytic enzymes to destroy the pathogen
14. Cells which are activated by bind to antigen presented on phagocytes (antigen presenting cells)
16. cells involved in humoral-immunity

1. Released from activated cytotoxic T cells after binding to a specific antigen
2. foreign antigens e.g. pathogens, abnormal cells, toxins
3. The process by which an antigen is taken into a B cell after binding to an antibody on its cell surface
4. Found on the cell surface of helper T cells and each specifically binds only one type of antigen
5. Activated cytotoxic T cells bind to antigen presented on these
6. Cells of the non-specific immune system
8. Clonal selection results in the formation of plasma cells and .......................
11. Site of T-cell maturation
13. Cells involved in cellular-immunity
15. ..........cells which produce and release antibodies into the blood