adaptive immune system Flashcards
What is adaptive immunity
bodies ability to defend against foreign invaders
Where do T and B cells develop?
Primary lymphatic organs
(RBM and thymus)
Where do B cells complete their development?
RBM
Where do T cells mature?
Thymus
What is immunocompetence?
T/B cell ability to carry out immune responses
Mature B and T cells make antigen recepters which are what?
molecules which can recognize specific antigens
Two major types of t cells
Helper T cells aka CD4
Cytotoxic T cells aka CD8
What happens in cell-mediated immunity?
Cytotoxic T cells attack invading antigens
What is cell mediated immunity effective against?
Intracellular pathogens
cancer
foreign tissue
What happens in antibody-mediated immunity?
B cells turn into plasma cells, which secrete antibodies or immunoglobins
Antibody mediated immunity effective against?
Extracellular pathogens
What is clonal selection process?
When lymphocyte divides and differentiates
Lymphocyte that goes through clonal selection gives rise to which two types of cells?
Effector cells
Memory cells
What is immunogenicity
- Ability to provoke immune response by stimulating prod of specific antibodies
Substance that has antigenicity and lacks immunogenicity
Haptens
