Lymphatic and immune system 4.0 / 5 based on 1 rating ? Nursingimmunity UniversityAll boards Created by: AmberJ1Created on: 30-04-17 19:18 what does the lymphatic system consist of? lymph fluid, lymphatic vessels, lymphatic tissues and organs 1 of 25 functions of lymphatic system circulating body fluids to defend against pathogens, draining excess interstitial fluid, transporting dietary fluids, protecting agains invasion 2 of 25 what is lymph? each day 20L from blood capillaires to tissue, 17L returns to blood and 3L pass into lymph 3 of 25 what are the primary organs? stem cells, thymus, bone marrow, 4 of 25 what are secondary organs & tissue? immune response, lymph nodes, lymphatic nodules & spleen 5 of 25 whats the dendritic cells in thymus do? helps mature T cells 6 of 25 whats the epithelial cells in thymus do? educate T cells 7 of 25 whats the macrophages cells in thymus do? clear out dying or dead T cells 8 of 25 how many lymph nodes are there roughly? 600 9 of 25 what are lymph nodes? they are filters that capture foreign bodies, they have more afferent vessels compared to efferent vessels 10 of 25 whats the spleen? largest mass of lymphatic tissue that contains both red pulp and white pulp 11 of 25 whats natural passive immunity? passed on from mother to fetus 12 of 25 whats natural active immunity? getting the disease 13 of 25 whats artifical passive immunity? injecting antibodies 14 of 25 whats artifical active immunity? immunisation of dead cells 15 of 25 whats innate immunity? non-specific resistance that prevents microbes accessing body 16 of 25 whats the first line of defence? chemical & physical barrier - outer layer of skin 17 of 25 whats the second line of defence? internal defence: interferons, iron-binding proteins, antimicrobial proteins, complement system, phagocytes & NK cells 18 of 25 whats adaptive immunity? specific immunity: cell-mediated and anti-mediated 19 of 25 whats the difference between cell-mediated and anti-mediated? CELL - cells attack cells, cytotoxic T cells directly attack antigens, ANTI - B cell develop into plasma cells, antibodies bind to antigen 20 of 25 whats clonal selection? T and B cells clone include effector and memory cells 21 of 25 whats an antigen? causes the body to produce specific antibodies or specific T cells 22 of 25 whats immunological memory? long last antibodies & lymphocytes produced by clonal selection, stronger & faster in 2nd time 23 of 25 whats an antibody? y or t shaped that is specific to a specific antigen 24 of 25 whats a B cell? remain in lymph node, spleen & lymphoid tissue, formed in red bone marrow, when activated it transfers into plasma cells to produce antibodies 25 of 25
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