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Immunity
Immunity questions for studying
7
Anatomy
Not Applicable
05/08/2007

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Term
Plasma cells derived from B cells produce antibodies
Definition
What type of cells produce antibodies?
Term
What is an antibody?
Definition
a substance produced in response to an antigen.
Term
What is Phagocytosis
Definition
2nd line of defense
white blood cells take in and destroy waste and foreign material.

mainly are neutrophils & macrophages
Term
What is an antigen?
Definition
any foreign substance that enters the body and induces an immune response.
Term
3 Types of T cells
Definition
Cytoxic (Tc) destroys foriegn cells
Helper T (Th) destroys one type helps send out troops to help (HIV)
Reg T cells (Treg) Supres immune system
Term
What tissues consititute the 1st line of defense against invasions of pathogens?
Definition
unbroken skin & mucous membranes
Term
What is the difference between the active & passive forms of naturally aquired immunity?
Definition
active form naturally aquired immunity comes from contact with a disease organism.

passive form comes from the passage of antibodies from a mother to her fetus through placenta or breast milk.
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