Flashcards
Filter lymph
Lymph nodes
Particularly large and important during youth, produces hormones that help to program the immune system
Thymus
Collectively called MALT
Peyer’s patches, tonsils
Removes aged and defective red blood cells
Spleen
Prevents bacteria from reaching the intestinal wall
Tonsils
Immunity is the resistance to disease resulting from the presence of forge in substances or
Antigens
Resist ace provided by antibodies released to body fluids the immunity is called
Humoral immunity
When living cells provide the protection, immunity called
Cellular immunity
Major actors in the immune response are the two lymphocyte populations of
B cells and T cells
Phagocyte cells that act as accessory cells in the immune
Blood, lymph
Originates in bone marrow from stem cells called hemocytoblasts
T cells and B cells
Progeny are plasma cells
B cells
Progeny include regulatory, help, and cytosine cells
T cells
Progeny include memory cells
T cells and B cells
Is responsible for directly attacking foreign cells or virus infected cells
T cells
Produces antibodies that are released to body fluids
B cells
Bears a cell surface receptor capable of recognizing a specific antigen
T cells and B cells
Forms clones upon stimulation
T cell and B cells
Accounts for most of the lymphocytes in the circulation
T cell
Antibodies can inactivate antigens in various ways depending on the nature of the
Antigen
Chief ammunition used against cellular antigens like bacteria and mismatched red blood cells
Complement activation and lysis
Binding of antibodies to sites on bacterial exotoxins or viruses that can cause a cell injury is called
Neutralization
Cross linking of cellular antigens into large lattices by antibodies is called
Agglutination
Molecules are cross linked into lattices by antibodies
Precipitation
The protective mechanism mounted by the antibodies serves to disarm and/or immobilize the antigens until they become
Phagocytes
Largest lymphatic organ, blood reservoir
Spleen
An individual receives Sabin polio vaccine
A
Antibodies migrate through a pregnant woman’s placenta into the vascular system of her fetus
P
A student nurse revives an injection of gamma globulin after she has been exposed to a viral hepatitis
P
“Borrowed” immunity
P
Immunologic memory is provided
A
An individual suffers through chickenpox
A
Initial response to an antigen, gearing up stage
P
Lag period of several days occurs before antibodies specific to the antigen appear in the bloodstream
P
Antibody levels increase rapidly and remain high for an extended period of time
S
Immunoglobulin memory is established
P
The second, third, and subsequent responses to the same antigen
S
