Nonspecific
the system responds to all antigenic insults in the same manner
Immune system
system of defense against diseases
Immunity
the ability of an animal to resist infection
Inflammatory response
The second line of defense
Mediators
Enzymes that attract WBC
Chemotaxis
Movement of WBC to the infected area
Phagocytosis
breaking down the foreign material
Lymphocytes
White blood cells
B-Cell Lymphocytes
antibodies in response to a specific antigen stimulation
Humoral response
B-cell response- slow
T-cell Lymphocytes
interact directly with the pathogens
cell-mediated immunity
a more direct way of destroying the pathogen (T-cell)
Thymus
a glandular structure where T-cells mature
Self-recognition
recognizing the animals own cells
Macrophages
WBC that destroys foreign substances
Antigen-combining receptor sites
surface of the cell membrane
plasma cells
B-cells that have developed and are stimulated to make antibodies
antibodies
large protein molecules that fight disease
memory cells
they have the ability to recognize the antigen
immunoglobulin
A large protein molecule
Agglutinate
the clumping together of antigens
Inherited immunity
result of genetic factors that influence them before birth
Acquired immunity
can be natural or artificial
Natural immunity
Type of acquired every time the animal is exposed
