MLT 106 Unit 1 Study Guide with Complete Solutions

MLT 106 Unit 1 Study Guide with Complete Solutions Immune System (IS) - Answer️️ -Tissues, cells and biological mediators that work together defending or protecting host organism from foreign substances and abnormal cells Immunity - Answer️️ -Process by which a host organism protects itself from attacks by external and internal agents Acquired immunity - Answer️️ -Formation of specific antigen-antibody and specific responses Self - Answer️️ -Anything that is derived from the host Nonself - Answer️️ -Anything physically outside the host What are the major components of the vertebrate immune system? - Answer️️ - Cellular and humoral immunity Cellular immunity - Answer️️ -Mediated by various IS cells Cytokines - Answer️️ -Protein or peptide molecules function as powerful mediators of immune system Lymphokines - Answer️️ -Produced by lymphocytes Monokines - Answer️️ -Monocytes and macrophages ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 2 Chemokines - Answer️️ -Attractant molecules that interact between cells and complement proteins and are important in destroying pathogens Phagocytes - Answer️️ -Complex molecular structures on surface of invading cells or in secretions and fluids of the host body Humoral immunity - Answer️️ -Fluid parts of IS What is the most important part of humoral immunity? - Answer️️ -Antibody What are antibodies also called? - Answer️️ -Immunoglobulins What are the two major parts of Immune System? - Answer️️ -Innate and Adaptive (Acquired) immunity Innate immunity - Answer️️ -Nonspecific IS - immediate line of immune defense - present at birth - external - no modifications needed What cells are of the innate immune system? - Answer️️ -Phagocytic leukocytes and natural killer cells What are the two major phagocytic cells? - Answer️️ -Polymorphonuclear cells Mononuclear cells What are the three major roles of complement in immunity? - Answer️️ -Lysis Opsonization and phagocytosis Mediation of inflammation Adaptive (acquired) Immunity - Answer️️ -Most highly evolved ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 3 - most specific - evolves via specific contact - adapt to and destroy new pathogens Antithetical antigen - Answer️️ -Antigen that an antibody is made against B lymphocytes - Answer️️ -Develop in bone marrow and are responsible for humoral immunity (antibody production) - when activated become plasma cells - do not normally exceed 2% T- Lymphocytes - Answer️️ -Originate in bone marrow but ma