Immune System Flashcards
neutrophils
highly mobile phagocytic specialists that engulf and destroy unwanted materials
eosinophils
secrete chemical that destroy parasitic worms and are involved in allergic manifestations
basophils
release histamine and heparin and also are involved in allergic manifestations
B lymphocytes
transformed into plasma cells, which secrete antibodies that indirectly lead to the destruction of foreign materials
T lymphocytes
responsible for cell-mediated immunity involving direct destruction of virus-invaded cells and mutant cells through nonphagocytic means
monocytes
transformed into marcrophages, which are large, tissue-bound phagocytic specialists
immunity
body’s ability to resist or eliminate potentially harmful foreign materials or abnormal cells
immune activities include
defense against invading pathogens, removal of “worn-out” cells, ID and destruction of abnormal/mutant cells, inappropriate immune response, rejection of tissue cells of foreign origin
tonsils and adenoids
situated to respond to inhaled
appendix and Peyer’s patches
situated to respond to microbes in the digestive system
lymph nodes
situated to respond to potential pathogens that gain access to the lymph
spleen
performs same role as lymph nodes except in the blood
thymus and bone marrow
process T and B lymphocytes
inflammation
a nonspecific response to tissue injury (foreign invasion, tissue damage, or both)
interferon
a family of proteins that nonspecifically defend against viral infection