Exam Review

2. When chemicals in the cell are released into healthy surrounding tissue
3. Protein that CTL's utilize to attack
5. Collection of lymphoid primarily in digestive and respiratory system that initiates response against antigens
7. Doorway that B and T cells use to enter secondary lymphoid organs
8. Smooth cell that crowns peyers patch
9. This type of helper/killer T cell once activated kills infected viruses by traveling through lymph nodes
11. Small protein fragments that bind MHC molecule grooves
13. The clustering of TCR and adhesion molecules
14. When cells use their own cellular components to digest and reuse (self eating)
16. ______ positive is when T cells express CD4 and CD8
18. When cells are tested for tolerance of self

1. When T cells are tested for MHC restriction
4. These proteins help deactivate T cells when attack slows or ends
6. Assisted cell suicide
10. Special vesicles in the cytoplasm
12. Antibodies that babies get from mothers milk
15. When a follicle becomes center of B cell development and is activates as a secondary lymphoid follicle
16. Observed response from tuberculosis test
17. Smooth cells that line intestines and imbedded in villi covered cells