Chapter 17 Flashcards
Monomer
Blood, lymph on B cells
B cell antigen receptor
Initiate immune response
IgD
On mast cells/basophils
Allergic reaction
Lysis of parasitic worms
IgE
Two types: Dimer, monomer
Present in mothers milk
Secretions/ mucosal protection
IgA
Pentameter
Activate complement system
Agglutinates microbs
First antibody produced in response to infection
IgM
Monomer
Only cross placenta
Enhance phagocytosis
Activate complement system
IgG
Process of destroying B and T cells that react to self antigens
Clonal deletion
Enhances phagocytosis and reduces number of infections units to be dealt with
Agglutination
Coating antigen with enhances phagocytosis
Opsonization
Blocks active site of toxin
Blocks adhesion of bacteria and viruses to mucous
Neutralization
Response of the body to the first contact with an antigen
Characterized by appearance of IgM followed by IgG
Primary response
Subsequent contact with the same antigen results in a very high antibody titer
Secondary response
Humoral antibody immunity
Antibody binds to bacteria, toxins and extra cellular viruses
B cells responsible for production
Specific immunity
Cellular immunity
Based on T cell attacks infected cells from viruses, transplanted cells, parasites, cancer cell
Specific immunity
Substance that is foreign to the body to trigger an immune response
Antigen
Ag
Proteins made in response to an antigen
Antibody
Ab
