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Immune System Vocab.

Immune System Vocabulary.

Pathogen any disease-producing agent, especially a virus, bacterium, or other microorganism.
Immune Response Cells of the immune system that can distinguish between different pathogens.The immune system cells react to each kind of pathogen with a defense specifcally targeted for that pathogen.
Antibody A chemical produced by a B cell of the immune system that destroys a specific tyoe of pathogen.
Passive Immunity When your immune system produces antibodies in response to the presence of a pathogen.
Infectious Disease A disease that can pass from one organism to another.
Lymphocyte White blood cell that reacts to each kind of pathogen with a defense targeted specifically at that pathogen.
Immunity The ability of the immune system to destroy pathogens before they can cause disease.
Antibiotic A chemical that kills bacteria or slows the growth without harming the body cells of humans.
Pasteurization A heating process that is widely used to kill microorganisms in food products such as milk.
T Cell A lymphocyte that identifies pathogens and distinguishes one pathogen from another.
Allergy An abnormal reaction of the body to a previously encountered allergen introduced by inhalation, ingestion, injection or skin contact.
Inflammatory Response The inflammatory response leaks fluid and certain white blood cells that fight pathogens.
Antigen A molecule on a cell that the immune system can recognize as a part of the body or as coming from outside of the body.
Vaccination The process by which harmless anitgens are deliberately introduced into a person's body to produce active immunity.
Allergen A substance that causes an allergy.
Phagocyte A white blood cell that destroys pathogens by engulfing them and breaking them down.
B Cell A lymphocyte that produces chemicals that help destroy a specific kind of pathogen.
Vaccine The process by which harmless antigens are deliberately introduced into a person's body to produce active immunity.
Histamine A chemical that is responsible for the symptoms of an allergy.
Active Immunity Antibodies that fight pathogens that came from another source other than someone's own body.
Created by: justa