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Lymphatic/Immune System Concept Map Delina Montoya Period 3 - Coggle…
Lymphatic/Immune System Concept Map Delina Montoya Period 3
Humoral and Cellular Response
Humoral= Antibody-mediated Immunes Response
B cells activate and clone cells when antigens meet the matching antigens and then need Helper T cells for activation. - Helper T cells release cytokines that activate the B Cell -Some B cells become plasma and produce antibodies -Bell cels become memory cells
-Antigen presenting cell (B or Macrophage) encountering the antigen
-Tcell encounter macrophage of the major histocompatibility complex & if the antigen and t cell antigen receptor fit it becomes activated
-cellular immune response ceel-to--cell contact
-secrete cytokines to enhance cellular response to antigens
-Helper T cell stimulates B cell to make antibodies
-Cytoxic T cells eliminate virus infected cells
-Memory T cells provide no delay response
Antigens and Antibodies
Antibodies (Immunoglobulins)
5 major types: IgG, IgA, IgM,IgD, IgE
Carried by body fluids,capable of binding specifically to antigens
Soluble protein secreted by plasma cells
Antigens
Generally larger and more complex molecules
Proteins, polysaccharides ,glycoproteins, or glycloipids that can trigger an immune response
Can be entire pathogen or part of it
Cells involved in the immune system
B Lymphocytes
-Mature in the bone marrow
Provides humoral immune response in which B cells interact indirectly, producing antibodies that destroy the antigens or antigen-bearing agents
T lymphocytes
-Stem cells that reach the thymus become T cells
Provides cellular immune response in which T cells interact directly with the antigens or antigen-bearing agents, to destrory them
Both reside in lymphatic organs
Disorders associated with the Immune System
AIDS
-Can take years to develop
-Kills and impairs cells in the immune system
-body loses the ability to fight off common infections
HIV; a virus and an infection
-Can be transmitted through seual actvity
-Human immune deficiency virus
Edema: condition that blocks flow in lymph
Pathogens: disease causing agents that can produce infections within the body
Major functions of the Lymphatic and immune systems
The immune system functions as the bodys defense against infectious pathogens
Lymphatic vessels collect and carry away excess fluid from vessels called lacteals
movement is in a milking action of the skeltal muscles surrounding the lymphatic vessels
Organs, cells and biochemicals of the lymphatic system help defend against diseases
Rhythmic contraction of smooth muscles of the vessel
Anatomy of Lymphatic system
Bone Marrow
-Site of blood cells and immature hymphocyte formation and B lymphocyte
Spleen
-Lies in upper left abdominal;largest lymphatic organ
-contains blood
-composed of white and red pulp
-filters blood and removes damaged blood cells and bacteria
Thymus
-Located behind the sternum
-shrinks in size during the lifetime
-surrounded by connective tisses that extends inside and divides into lobules
Tonsils
-composed of 3 masses of lymphoid tissue around the openings of mouth and throat
-subject to chronic infection
Innate immune defense
Responds rapidly, "Born With It"
-Includes species resistance,mechanical barries, natural killer cells,inflammations,phagocytosis, and fevers
special Resistance
-a species resistance to diseases that affect other species
Mechanical Barries
-1st life of defense
-unbroken skin and mucous created mechanical barriers that prevent the entry of pathogens
3.Chemical Barriers
-highly acidic
-provided by gastric juice, or lyzsozyme in tears that kill many pathogens
Natural Killer Cells
-type of lymphocyte that defends the body aganst various viruses and cancer cells
Inflammations
-tissue that responds to pathogens
-dilatation of blood vessels
6.Phagocytosis removes foreign particles from the lymph
Fever
fevers protect by interfering with proper conditions ot promote bacterial growth