Function of lymphatic system - Drain excess interstitial fluid, transport lipid and carry immune response, Definition of immunity - Ability to ward off damage or diseases through our defense, Definition of pathogen - An organism causing diseases to its host , Definition of antigen - Anything the body perceives as foreign, Define immunocompetence - Ability of the body to produce a normal immune response, Difference between innate and adaptive immunity - specific recognition and memory component, Difference between T cell and B cell - T cell are responsible for cell-mediated immunity while B cell responsible for antibody-mediated immunity, Role of spleen - Filters blood or bacteria, viruses and destroys worn out RBC, Vasolidation - one of the innate immunity defenses, T cell activation - T cell receptors recognize and bind to a specific foreign antigen fragments that are presented in antigen-MHC complex, Clonal selection - produce effector cell and memory cell, Active helper T cell - secretes Interleukin-2 needed for virtually all immune respons, Adaptive immunity - cell-mediated and antibody-mediated work together to get rid of large number of copies of antigen from the body, First line of defense, Antigen processing - antigenic proteins are broken down into peptide fragments and associated with MHC molecules,

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