Immunology Flashcards
Serum from an individual previously immunized against an antigen that contains antibodies specific for that antigen
Antiserum
An animal's production of antibody as a result of infection with an antigen or immunization
Active immunity
The ability to fight infection with the antibody an animal receives from its parent
Passive immunity
Consist of a non infectious agent, such as whole killed pathogens or selected antigenic subunits in sufficient amount to induce immunity
Inactivated vaccine
Extracts genes from 1 organism
and combines them with genes from another
Recombinant vaccine
Inactivated antigenic toxin molecules that stimulate development of the animal's own antibodies
Toxoid
A biological product representing a pathogenic organism that Stimulates immunity toward the pathogen
Vaccine
Occurs when antibodies are produced by lymphocytes in response to the animal having experienced and endured a certain disease process
Natural active immunity
Occurs when an inactivated form of the disease is introduced into the animals body. This encourages lymphocytes to produce specific antibodies without causing clinical signs
Artificial active immunity
Occurs when an antiserum produced within a donor animal is given
Artificial passive immunity
The innate ability to respond to some antigens seen in neonates (very young animals)
Natural passive immunity
Simple barriers to invasion, for example, skin
Basic defenses
The mucous membrane and microscopic hairs that line the respiratory tract
Mucociliary apparatus
Cells in the immune system that work together to protect the body. 4 important types are phagocytes, helper cells, cytotoxic cells and suppressor cells.
Cellular defense
Large cells that ingest microorganisms or other cells and foreign particles
Phagocytes
Messenger proteins that help to activate and mobilize other immune system cells
Cytokines
Produce toxins (poisons) designed to destroy infected cells
Cytotoxic cells
Turn off and regulate immune responses to prevent damage to the animal's body, exorcism after the rest of the immune system has brought the invader under control
Suppressor cells
Specialized serum proteins that combine with a particular antigen to combat specific parts of an invading organism
Antibodies