Non-doctor health professionals that may be a part of the orthopedics team include: 1  Athletic trainers. 2  Counselors. 3  Nurse practitioners. 4  Physical therapists. 5  Physician assistants. 6  Psychologists. 7  Social workers. 8  Vocational workers.
The main response of the immune system to tumors is to destroy the abnormal cells using killer T cells, sometimes with the assistance of helper T cells. Tumor antigens are presented on MHC class I molecules in a similar way to viral antigens. This allows killer T cells to recognize the tumor cell as abnormal.
Here are the steps in an immune response: 1  When an antigen is detected by a macrophage (as describe above under phagocytosis), this causes the T-cells to become activated. 2  The T-cells secrete interleukin 2. 3  From here, the immune response follows 2 paths: one path uses cytotoxic T cells and the other uses B cells.