immune system Flashcards
parts of immune system
white blood cells, thymus, bone marrow, spleen, lymphatic system, antibodies, complement system
WBC
made in bone marrow, key player in our immune system. part of lymphatic system. move through tissue looking for foreign invaders. include lymphocytes and other immune cells
antibodies
help the body fight toxins it produces, mark antigens for destruction
complement system
made up of proteins whose actions compliment antibodies
lymphatic system
delicate tubes throughout the body..manage fluid levels, react to bacteria, deal with cancer cells, deal with cell products that would result in disease/disorders, absorb fats form our diet,
lymphatic system structure
lymph nodes–trap microbes
lymph vessels–tubes that carry lymph
white blood cells
spleen
blood filtering organ that removes microbes and destroys old/damages red blood cells, makes disease fighting components of immune system
bone marrow
spongy tissue found inside bones..produces red blood cells (carry oxygen), white blood cells (fight infection), platelets (helps blood clot)
thymus
filters and monitors blood content, produces white blood cells called T-lymphocytes
adaptive immune system
a kind of passive or active immunity in which antibodies to a particular antigen are present in the body
antigen
substances on the surfaces of agents that act to identify them, to the body, as being native or foreign
antimicrobial
a substance that kills or inhibits growth of micro-organisms with minimal damage to the host
antigen presenting cell (APC)
a cell that displays foreign antigens with major histocompatibility complexes on their surfaces
B-cell
lymphocytes that mature in bone marrow and make antibodies in response to antigens
barrier
a divider between parts of the body