Chapter 14 Flashcards
(50 cards)
lymph
contains lymphocytes and monocytes, originates from blood
interstitial fluid
fluid that surrounds body cells
lymph capillaries
specialized thin walled cells, called lymph instead of interstitial fluid now
lymph nodes
larger lymphatic vessels and clumps of lymph tissue
lymphatic system
drainage system to transport needed proteins and fluid that have leaked out of blood capillaries, absorb lipids from small instensines, defense of body against foreign organisms, produce antibodies
lymph vessel
little bigger than capillaries, smaller than nodes
meseneric
intestinal
paraaortic
lumbar
right lymphatic duct
drains right side of head and chest
thoracic duct
drains lower body and left side of head
b cells
specialized lymphocytes that produce antibodies, bone marrow
t cells
attack bacteria and foreign cells, thymus gland
spleen
destruction of old red blood cells, storage of blood, filtration of microogranisms and othe foreign materials, activation of lymphocytes
thymus gland
protect body from disease, important in development of effective immune system in childhood, tolerance of self antigens
autoimmune diease
when tolerance against self antigens fails
natural immunity
resistance present at birth
adaptive immunity
b and t cells, vaccination, injections of immunoglobulins, maternal antibodies for infants, humoral and cell-mediated
humoral immunity
b cells, produce antibodies after exposure to specific antigens, b cell matures into plasma cell which produce immunoglobulins
cell-mediated immunity
t cells, cytotoxic t cells (CD8+) attach directly to antigens and kill them and secrete cytokines which aid other cells in antigen destruction, helper t cells (CD4+) assist b cells in making antibodies and stimulate t cells to attack antigens, suppressor t cells inhibit b and t cells and prevent them from attacking bodies own good cells
complement system
group of proteins that help antibodies kill their target
dendritic cell
initiates adaptive immunity by presenting antigens to t and b cells
immunotherapy
transfer of immune cells, vaccines, monoclonal antibodies created in a lab to help cure cancer
immun/o
protection
lymph/o
lymph
