immunology ch9 Flashcards
passive immunity
transfer of antibodies from the donor to a recipient
active immunity
animal acquires after being exposed to and antigen
B lymphocyte
develop from stem cells in the bone marrow and are activated by binding to the antigen
T lymphocytes
produced in the bone marrow and then stored in the thymus gland
acquired immunity
formation of antibodies after exposure to an antigen
antibody
proteins produced by WBC in response to antigen
antigen
foreign substance that stimulates the production of antibodies
interstitial fluid
fluid the the spaces between cells, extracellular fluid in tissues
lymph
watery fluid found in lymphatic vessels
lymph capillaries
tiniest lymphatic vessels
lymph node
stationary bean shaped structure along lymphatic vessels
lymph vessels
vessels that carry lymph throughout the body
macrophages
monocytes that migrate from the blood to the tissue, large phagocytes, exists in liver spleen and bone marrow
spleen
organ in the cranial abdomen that stores produces and destroys blood cells
thymus gland
organ in the cranial mediastinum that produces and stores lymphocytes
allergen
substance that causes a specific hypersensitivity
allergy
abnormal hypersensitivity to an antigen
anaphylaxis
exaggerated hypersensitivity to a foreign substance
carrier
an animal that harbors a disease without displaying signs of infection
immunosuppression
impaired immune response immunocompromised
lymphoma
malignant tumor of lymphoid tissue, lymphosarcoma
rfemission
symptoms lessen and the patient feels better
susceptible
easily affected, lacking resistance
toxin
a poison