lymphatic and immune system Flashcards
natural active
Ag —> Ab
natural passive
recieve Ab from mother
artificial active
vaccine
example: polio, mmr
artificial passive
receive antibody through injectible and short lived
example: medicine for RH- mom, and tetanus shot (10 yrs)
IgG
Greatest quantity
cross placenta
IgM
5 subunits\
first responder
short lived
IgA
in other body fluids except blood
IgD
IgE
involved in allergies
T cell (T lymphocytes)
T-helper
T-inhibitor( does not stop at non threatening substances like pollen)
T-memory (activate more aggressive response after re-exposure to antigen) protect against previously encountered pathogens
T-NK (share characteristics of both innate and adaptive immunity)
Immune system
NON specific vs specific
non specific immunity is barriers like skin and cellular for non particular items like dust, bacteria, etc
specific immunity = more complex and involves antigens (Ag) and antibodies aka immunoglobulins (IG) and involves T- lymphocytes/B lymphocytes
innate aka non specific immunity
generalized immunity all humans are born with including physical/chemical barriers like skin, mucous membranes, stomach acid, tears, and generalized white blood cells like macrophages
non specific because acts against all microbes in the same way
adaptive aka specific immunity
learned by the body based on previous exposure to pathogens and includes B/T lymphocyte cells and Ag+Ab
based on specific response to specific microbe
epitopes
part of antigen recognized by the immune system
what cells produce Ab aka immunoglobulins (IG)?
plasma cells and B lymphocytes
tonsils are involved in ?
filtering
what do lymph vessels do?
filter
what happens to thymus gland as you age?
it gets smaller and produces less T-lymphocytes