Across
- 3. immunoglobulin involved in allergic reactions
- 4. primary lymphoid organ where T cells mature
- 5. protein molecules that recognize antigens
- 8. cells that produce antibodies
Down
- 1. organelle important for antigen processing in APCs
- 2. inflammatory chemical released by mast cells
- 6. type of immunity you are born with
- 7. immunoglobulin found in secretions like saliva
- 9. cell surface proteins that present antigens