Co-ordination of immunity- tissue specific responses

Question 1

2 levels of immune organisation

Answer 1

basic organisation, which is generally homeostatic in nature
rapid mobilisation- can very quickly change if necessary

Question 2

3 levels of lymphoid structure

Answer 2

primary- thymus and bone marrow
> produce virgin lymphocytes

secondary- spleen, lymph nodes
> sites for activation of lymphocytes

tertiary- isolated follicles, structures associated w chronic inflammation
> post-natal development, ectopic tissue

Question 3

MALT, NALT, and GALT

Answer 3

mucosa, nasal, and gut-associated lymphoid tissue

Question 4

peyer’s patch

Answer 4

lymphoid tissue in the gut

Question 5

role of the lymph node

Answer 5

adaptive immune responses are initiated, dendritic cells migrate there and can interact with naive T cell populations

Question 6

mucosal lymphoid structure function

Answer 6

induction of mucosal associated adaptive immune responses, e.g. peyer’s patches

Question 7

what is the general role of lymph nodes on the scale of the whole immune system?

Answer 7

important in making a fast response- not absolutely necessary for a response at all