Flashcards in Chap 14, Lymphatic and Immune Systems, Terminology Deck (19)
Antibodies that are produced against an individual's own normal cells.
Examples of autoimmune disease are:
rheumatoid arthritis and systemic lupus erythematosus. These are chronic, disabling diseases caused by the abnormal production of antibodies against normal body tissues. Signs and symptoms are inflammation of joints, skin rash, and fever. Glucocorticoid drugs (prednisone) and other immunosuppressants (azathioprine, methotrexate) are effective as treatment but make patients susceptible to infection.
Antibodies (proteins) secreted by B cell lymphocytes (plasma cells)
Blocking or turning off the normal immune response.
This may occur because of exposure to drugs (corticosteroids) or as the result of disease (AIDS and cancer). Immunosuppressed patients are susceptible to infection with fungi, Pneumocystis bacteria, and other pathogens.
Formation of lymphocytes.
Abnormal collection of fluid in tissue spaces caused by obstruction of lymph vessels and backflow of lymph.
Interstitial fluid collects within the spaces between cells as a result of obstruction of lymphatic vessels and nodes. Radiation theraphy may destroy lymphatics and produce lymphedema, as in breast cancer treatment.
Deficiency of lymphocytes.
Increase in number of lymphocytes in the bloodstream.
Resembling lymph or lymph tissue.
The suffix -oid means resembling or derived from. Lymphoid organs include lymph nodes, spleen, and thymus gland.
Disease of lymph nodes.
Inflammation of lymph nodes.
Enlargement of the spleen.
Note that the combining form for spleen contains only one e.
Removal of the spleen.
Absence of a spleen.
The condition may be congenital or result from surgical removal.
Syndrome of spleen enlargement (splenomegaly) and destruction of red blood cells (hemolysis).
A syndrome marked by splenomegaly and often associated with blood cell destruction, anemia, leukopenia, and thrombocytopenia.
Removal of the thymus gland.
Pert. to a toxin, which is a poison or harmful substance.
Exaggerated or unusual hypersensitivity to foreign protein or other substance.
The suffix -phylaxis means protection. This is an unusual hypersensitivity to previously encountered foreign proteins or other antigens. Vasodilation and a decrease in blood pressure can be life-threatening.