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lymphatic and immune system (Innate/natural immune defenses and…
lymphatic and immune system
Major functions of the
Lymphatic system
excess fluid from tissue is drained
essential role in body defenses and resistance to disease
returns clean fluid and proteins leaked go back to blood
Major functions of the
Immune systems
function as the body's defense against infectious pathogen
Anatomy of the lymphatic system
lymph nodules- compact masses of lymphatic tissues
lymphatic organs- thymus, spleen, lymph nodes
T-lymphocyte - causes direct destruction of virus invaded cells and mutant cells
thymus- contain lymphocytes
spleen- contains blood instead of lymph, filters blood
tonsils- subject to chronic infection
humoral response
carried by body fluid, capable of binding specifically to antigens
soluble protein secreted by plasma cells
cytokines are small portions that are involved in cell signaling and provide a balance between humoral and cell mediated response
Innate/natural immune defenses and Adaptive/acquired immune defenses;
born with it
respond rapidly
includes speeches resistance, mechanical barriers, chemical barriers, natural cells, inflammation, phagocytosis, and fever
develop slowly
body learns this during its lifetime
carried out by lymphocytes that recognize a specific invader
response mounted by the against specific recognize foreign molecues
cellular response
aka antibody mediated response
involves B cells that recognize antigens or pathogens that are circulating in the lymph to blood
binding chemical signals to their corresponding receptors induces events within cell that ultimately change its behaviour
antigens and antibodies
antigen t presenting cells such as B cell or macrophage, that has already encountered the antigen
some of the B cells became plasma cells, producing and secreting antibodies
antibody mediated immune response is also called humoral immune response
disorders of the Immune system.
HIV- which causes AIDS, an acquired viral infection that destroys important white blood cells and weakens
severe combined immunodeficiency- children are in constant danger of the infections from bacteria, virus, and fungi
organ rejection normally happens to those that have chemotherapy