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immune system (macrophages and monocytes (capable of phagocytosis (trap…
immune system
macrophages and monocytes
Monocytes passes out of the blood vessel and become fixed in the tissue, it is refered to as a macrophages or dendritic cells
capable of phagocytosis
trap and phagocytize foreign substances and cellular debris
secret interleukin-1
macrophage acts as antigen presenting cells so this immune cells activate by antigen.
lymphocytes
cell maturation
T cells matured in thymus
B cells matured in bone marrow
T cells
Helper T cells
secreting a variety of cytokines which allow B-cells to mature and develop into plasma cells
Suppressor T cells
suppress antibody production by other lymphoid cells.
Cytotoxic T Cells
kill abnormal sl cells(tumour cells) or cells infected by the virus
B cells
activated by Helper T cells to produce antibodies
forms Memory B cells
natural killer (NK) cells
contorl viral infection
destroy cancer cells
Granulocytes
neutrophils
chemotaxis & phagocytosis
eosinophils
protection againts parasites
basophils
allergic response
consists of
lymphoid tissues
leukocytes (white blood cells)
bone marrow
spleen
thymus
lymph nodes