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The Immune System
The immunity and body defense
15
Biology
Undergraduate 2
12/02/2009

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Cards

Term
Q: Which lymphocytes produce antibodies and function in the humoral immune system?
Definition
B cells
Term
Q: T cells which directly terminate antigens are called ...
Definition
Cytotoxic T cells
Term
cells which precipitate the production of antibodies by B cells are called ...
Definition
Helper T cells
Term
Q: Which immune disorder is characterized by absent or nonfunctional T and B cells?
Definition
Severe combined immunodeficiency (SCID)
Term
Q: The HIV virus severely decreases the number of which type of cells?
Definition
Helper T cells
Term
If you have had the mumps once you will never have them again. This is due to
Definition
active immunity
Term
What organ is your first line of defense to entry of pathogens?
Definition
skin
Term
Substances formed by the body in response to foreign proteins are called
Definition
antibodies
Term
A doctor will prescribe you antibiotics for what types of infection?
Definition
bacteria
Term
mmunization from vaccines works because you have been exposed to
Definition
proteins from the pathogens but the pathogens are killed or weakened so they can not give you the disease
Term
A fever in response to an infection helps you fight the infection because
Definition
bacteria that cause human disease do not grow well at high temperatures.
Term
Antibodies
Definition
are specific for a type of antigen.
Term
HIV (the AIDS virus) primarily attacks which set of cells:
Definition
T helper
Term
Humoral immunity refers to the action and function of the ____ cells.
Definition
B-cells
Term
he major body defense represented by the skin, tears, and mucous membranes is the _________________ system.
Definition
mechanical
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