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A&P Ch 24

Lymphatic System & Immunity

What is the major difference between lymph and blood plasma? Amount of proteins present
The left subclavian vein receives lymph from Thoracic duct
The lymph from the right foot empties into the Thoracic duct
Function of the spleen? Removes worn out blood cells
List 3 physical or chemical barriers Mucus, Saliva, Urine
Nonspecific cellular disease resistance mechanism? Macrophages
These antimicrobial substances will diffuse to uninfected cells and reduce production of viral proteins. Interferons
Sign of inflammation? Pain, heat, swelling
Intensifies the effect of interferons and promotes the rate of repair? Fever
This induces production of a specific antibody Antigen
This cell can only become activated when bound to a foreign antigen while simultaneously receiving a second stimulating signal in a process called co stimulation. T cell
Cytotoxic T cells secrete these protein digesting enzymes to trigger apoptosis in an infected cell. Granzymes
Cytotoxic T cells secrete this toxin that is used to fragment the DNA of an infected target cell. Lymphotoxin
Once activated, a B cell will clone into an antibody secreting cell called a Plasma cell
This class of antibodies is mainly found in sweat, tears, breast milk, and gastrointestinal secretions. IgA
This class of antibodies is the largest and the first to be produced in an infection. IgM
This action makes microbes more susceptible to phagocytosis. Opsonization
This is characterized by the inability of the immune system to protect the body from a pathogen. Immunodeficiency diseases
An acute allergic response can lead to Anaphylactic shock
A natural exposure to an infectious agent leads to Active immunity
This class of antibodies indicates a recent invasion. IgM
Of the following, which is part of the bodys second line of defense? Natural killer cells
Which is the organ with pockets of lymphatic tissue that monitor blood for infectious material? Spleen
Where do T cells mature? Thymus
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