Ch13: lymphatic system Flashcards
acquired active immunity
resistance to a disease acquired naturally or developed by previous exposure or vaccination
acquired passive immunity
inoculation against disease or poison, using antitoxins or antibodies from or in another person or another species
antibody
specialized protein that fights disease; also called immunoglobulin
antigen
any substance that can provoke an immune response
antitoxin
antibodies directed against a particular disease or poison
B lymphocytes, B cells
a kind of lymphocyte that manufactures antibodies
cell-mediated immunity
resistance to disease mediated by T cells
cytotoxic
T cell that helps in destruction of infected cells throughout the body
gamma globulin
antibodies given to prevent or lessen certain diseases
helper cell
T cell that stimulates the immune response
humoral immunity
resistance to disease provided by plasma cells and antibody production
immunity
resistance to particular pathogens
immunization
vaccination
immunoglobulin
antibody
interferon
protein produced by T cells and other cells; destroys disease-causing cells with its antiviral properties
lymph
fluid that contains white blood cells and other substances and flows in the lymphatic vessels
lymph node
specialized organ that filters harmful substances from the tissues and assists in the immune response
lymphocytes
white blood cells made in the bone marrow that are critical to the body’s defense against disease and infection
macrophage
special cell that devours foreign substances
microphage
small phagocytic cell that devours foreign substances
natural immunity
inherent resistance to disease found in a species, race, family group, or certain individuals
pathogen
disease-causing agent
phagocytosis
ingestion of foreign substances by specialized cells
plasma cell
specialized lymphocyte that produces immunoglobulins
spleen
organ of lymph system that filters and stores blood, removes old RBCs, and activates lymphocytes