BIOL 1310 Lecture Notes - Lecture 71: Innate Immune System, Adaptive Immune System, Natural Killer Cell
19 Feb 2020
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Immunity= defends us from all that tries to infect us: all animals have innate immunity. Non self molecules: antibodies= proteins found in blood (found in blood plasma, vaccination= immune system is confronted with a vaccine, vaccine= harmless variant or part of a disease-causing microbe. The lymphatic system becomes a crucial battleground during infection: the lymphatic system: Involved in innate and adaptive immunity: consists of a branching network of lymphatic vessels and lymph nodes= similar to interstitial fluid, 2 main functions: Return tissue fluid back to the circulatory system. *lymphacytes come from bone marrow: lymphocytes (2 types) T: b and t cells each have specific surface antigen receptors= bind to one type of antigen (they are identical, lymphocytes mount a dual defense, b cells produce humoral immune response: Defend primarily against bacteria and viruses present in body fluids. Secrete antibodies into the blood and lymph: t cells produce the cell-mediated immune response:
