Immune System Flashcards
1
Q
Cytokines
A
Small regulatory proteins that are released by cells and act on other cells to generate and modulate an immune response
2
Q
Leukocytes
A
White blood cells that arise from bone marrow
3
Q
Lymphocytes
A
T and B cells
4
Q
Humoral/Antibody mediated adaptive immunity
A
-antigen presented with MHC II (on immune cells)
-Good against extracellular pathogens
-CD4 mediated
TFH cells activate B cells which differentiate into plasma and memory cells
5
Q
Cell mediated adaptive immunity
A
- infected cells present antigens with MHC class I (found on all cells)
- good against virally infected cells and cancer cells
- CD8 T cells recognize the antigen
- kills infected cells using perforins and enzymes
6
Q
Opsonization
A
Pathogen coated with antibodies to enhance phagocytosis
7
Q
Purified component vaccines
A
- capsular polysaccharides
- conjugate to a protein carrier so an immune response is generated
- antibodies to polysaccharide mediated opsonization
8
Q
Attenuated Vaccines
A
- live but avirulent
- can be bacterial or viral
- indices cell mediated immunity
