Flashcards in Human Defence System Deck (20):
an organism that causes disease
the ability to resist infection
General Defence System
acts as a barrier to all pathogens attempting to gain ENTRY into the human body.
Specific Defence System
attacks specific pathogens
produces antibodies to a specific antigen
stimulate B-cells and Killer T-cells
attack and destroy abnormal (viruses, cancer) human body cells
inhibit immune response
survive for many years after infection is eliminated and can stimulate T-cells and B-cells if same infection enters again.
a foreign molecule that stimulates the production of anti-bodies
a protein produced by white blood cells in response to a specific antigen.
the administration (usually by injection) of a non-disease causing dose of a pathogen (or its toxin) to stimulate the production of antibodies.
is what occurs when we produce or are injected with antibodies against a pathogen.
the ability to resist a disease caused by specific pathogens by the production of antibodies.
involves the production of a persons own antibodies in response to foreign antigens that enter the body.
Artificial Active Immunity
when a pathogen is medically introduced into the body.
Natural Active Immunity
when a pathogen enters the body in a normal way.
eg. chicken pox
when individuals are given antibodies that were formed in another organism
Natural Passive Immunity
when a child gets antibodies from its mother.