6th Grade - Immune System
Terms in this set (21)
Any organism of microscopic or submicroscopic size.
An organism that causes disease
A disease that is caused by a pathogen and that can be spread from one individual to another.
A disease that cannot spread from one individual to another
A poisonous substance
An organism that feeds on a living host
Who discovered that sterilizing surgical instruments with antiseptics would help prevent infection?
The founder of modern bacteriology, he is known for his role in identifying the specific causative agents of tuberculosis, cholera, and anthrax and for giving experimental support for the concept of infectious disease
A French chemist, this man discovered that heat could kill bacteria that otherwise spoiled liquids including milk, wine, and beer.
nonspecific defense reaction to tissue damage caused by injury or infection
A cell (as a white blood cell) that engulfs and consumes foreign material (as microorganisms) and debris.
The body's defensive reaction to invasion by bacteria, viral agents, or other foreign substances.
The two types of white blood cells that are part of the body's immune system: B lymphocytes form in the bone marrow and release antibodies that fight bacterial infections; T lymphocytes form in the thymus and other lymphatic tissue and attack cancer cells, viruses, and foreign substances.
Cells created in the thymus that produce substances that attack infected cells in the body.
A protein that, when introduced in the blood, triggers the production of an antibody
Cells manufactured in the bone marrow that create antibodies for isolating and destroying invading bacteria and viruses.
An antigen-binding immunoglobulin, produced by B cells, that functions as the effect or in an immune response.
Chemical stored in mast cells that triggers dilation and increased permeability of capillaries.
area around the cut is quite red and swollen
is a re-exposure to the immunizing antigen. It is intended to increase immunity against that antigen back to protective levels, after memory against that antigen has declined through time.
acquired immune response
creates immunological memory after an initial response to a specific pathogen, and leads to an enhanced response to subsequent encounters with that pathogen. This process of acquired immunity is the basis of vaccination.
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