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Immune system Ruth Hernandez Per3 - Coggle Diagram
Immune system Ruth Hernandez Per3
functions
lympathic system; a second circulatory system
lymphatic vessels;collect and carry away excess tissue fluid from interstitial spaces evwntullly returning it to the blood
lymph movement; factors that help the movement of lymph
lymph nodes;help defend body against disease
lymphatic vessels; walls of lymphatic vessles are thinner than those of viens but are constructed w same 3 layers
lymphatic tissues/organs;contains lymphocytes,marcophages and other cells
tissue fluid/lypmh; lymph tisdue fluid that has entered a lyphatic capillary
MALT;Mucososicaited lymphoid tissue
encapsulated lymphatic organs; lymph nodes, thymus, spleen
lymph nodes; located in groups or chains along lymphatic vessesls
lymph nodes; arent found in the central nervous system
fliter lymph;remove bacteria and cellulst debres before its retured to blood
immune surveillsnce;monitor body fluids lymphocytes n marcophages
lymphocytes attack virus,bacteria/parasitic cells that enter
lines of defense
adaptive specific defenses or immunity response by the body agaisnt pathogens their toxins or metabolic products
bodys defenses against pathogens;pathogens attemptd to gain entrance into the body, first line of defense,pathogen into body then second line of defense and finally third line of defense
anitgens; can only be large molecules that can trigger an immune response
lymphocye origins; red bone marrow, lymphocyte precursors
t cells and the cellular immune response ; synthesixe and secrete cytolines secrete toxins interferron
types of t cells; helper T cells stimulate B cells produce antibodies against displayed antigen
cytotoxic T cells; monitor the body cells and recoginze/eliminate cancer cells and virus infected cells
memory T cells;provide a quick response to any
B cells and the humoral Immune response; B cells becomes activated and provides a clone of cells when it encounters an antigen
T cells activities; antigen agents enter body t cells and b cells then help the process which leads to antibody secreting plasma cells
5 type of anitbodies; G, IgA,IgG,IgM,IgE,IgD
antibody actions;direct attack by inggluyinsyion precipition
Inflammation; stimulation of local inflammatoy changes in area
Some B cells remain as memory cells, T&B cells are activated in the first encounter with antigens
Active Immunity: obtained by antigen exposure Passive Immunity; obtained by receiving antiboides these can be accuqired by natural events such as getting the disease or induced artifiacally by injected( flu shots etc)
Hypersenstivity; Excessive immune response to harmless antigens that may lead to tissue damage
Immediate reaction hypersenstivity- what allerges are allergy mediates cause mucus production which results in inflammatory response
Antibody; dependent cytoxic reactions an example is transfusion of blood
proccesses
lymphatic system; lymphatic caplillary, afferent lymphatic veslls, lymph node , efferent lymphatic vessel, lymphatic trunk, into the collecting duct that ends in the subclavian vien
lymph nodes attack viruses bacter and parasitic cells that enter body
lymphatic pathways structure; lymphatic pathways, lymohatic capillaries, larger vessles, lymphatic truncks, empty viens into thoracic cavity
body defenses
pathogens;disease causing agents can be bacteria,virus,fungi,protozons
innate(non-specific)defense;gaurds against many types of pathogens;quickly
adaptive(specfic defenses or immunity;responds to specfiic pathogens slowly done by specialized lymphocytes w secrete cytoknes and anitbodies
Innate(non specific) defenses;specices resistance
Innate defenses mechanical barriers; prevents thre entry of certain pathogens includes hair mucus and sweat
Innatr defenses; inflammation a tissue repose to injury/infection which include redness swelling heat and pain
innate defneses chemical barriers; chemicals that kill many pathogens
Innate defense natural killer cells; small groups of lymphocytes other than t cells and b cells defends the body against viruses and cancer cells by secreting cytolytic substances
innate defense phagocytosis; engluf/digestion of pathogens
fever occurs when body tempeture is reset to antigens setpoint this provides a hostile enviroment for pathogens