wat things did people say wen distinguishing between t and b lymphocytes? was mentioning that one comes from bone marrow and the other from thymus gland important? cos i didnt....
wat things did people say wen distinguishing between t and b lymphocytes? was mentioning that one comes from bone marrow and the other from thymus gland important? cos i didnt....
uh no thats got nothing to do with their function. u just had to say one makes plasma cells which secrete antibodies that attack antigens and t-cells have killer t cells which directly attack antigens
hmmmmm
i talked bout b cells = antibody mediated response - antibodies are produced to attack antigens; t cells = cell mediated response - t cells coordinate themselves and other lymphocytes to attack the pathogen
in a huge summary
B-cell produce antibodies
T-cells control other lymphocytes by succreating lymphokines to make b-cells produce antibodies, bind with a specific antigen on the protein coat of a macrohpage. Killer T, suppressor T and helper-T functions
I also said that t-helper cells promote the production of more b+t cells to fight infection (something like that? :S) and also end the immune response with suppressor t-cells
b cells do not circulate (their lazy) but they are stimulated when antigens make it past the 1st line of defence, this is when b cells strat producing plasma, the plasma produces antibodies which deal with the antigens
T cells circulate (their active) and they deal with antigens more directly particularly with t killer cells.
Also not a bad idea to mention they work together. I think i stooged this question coz i said that B cells produce antibodies, T cells may do same or kill antigen directly. beh