Endocrine And Defence Systems Flashcards
Exocrine glands
Release their product into ducts or tubes
Endocrine gland
A ductless gland which produces hormones which are released directly into the bloodstream
Hormone
A chemical messenger produced by an endocrine gland and carried by the bloodstream to another part of the body where it has a specific effect
Pathogen
A disease causing organism
Immunity
The ability to resist infection
General defence system
A barrier to all pathogens attempting to gain entry to the human body
Specific defence system
Attacks specific pathogens
Antigen
A foreign molecule that stimulates the production of an antibody
Antibody
A protein produced by white blood cells in response to a specific antigen
Induced immunity
The ability to resist disease caused by specific pathogens by the production of antibodies
Active immunity
Involves the production of a persons own antibodies in response to foreign antigens that enter the body
Natural active immunity
Occurs when a pathogen enters the body in the normal way
Passive immunity
Occurs when individuals are given antibodies that were formed by another organism
Natural passive immunity
Occurs when a child gets antibodies from its mother
Artificial passive immunity
Occurs when a person is given an injection containing antibodies made by another organism
