Vaccines and adaptive immunity Flashcards
What happens if pathogens make it past innate defense?
Adaptive defense kicks in
Where do B and T cells get activated?
Lymph nodes
Spleen
Lymphoid tissue
What do B cells differenciate into?
Plasma cells
Memory Cells
What do T cells differentiate into?
Cytotoxic cells
Helper T cells
Suppressor T cells
Memory T cells
Humoral Response Steps
- Sensitization
- Antigen meets Helper T cell
- Helper T cell attaches to antigen
- Cytokines release
- Cells Divide
What do plasma cells do?
Make and release antibodies specifically to the antigen encountered
What do memory B cells do?
Retained for the next time the same antigen might be encountered
Long term immunity
Cellular response of T cells
Antigen presenting cell presents the antigen to mature T cells
Cells divide into Helper T cells and Cytotoxic T cells and Memory T Cells and Regulatory T cells
Examples of active immunity
Getting Sick
Getting vaccinated
Examples of passive immunity
Pregnancy and breastfeeding
Injection of antibodies