NPB 10 Lecture Notes - Lecture 15: Vas Deferens, Scrotum, Meiosis
Document Summary
Non-specific: neutrophils and macrophages (sitting in tissues and starting out as monocytes), complement proteins puts hole in bacteria. Water goes in and eventually the bacteria explodes. Interferons prepare the non-infected cells to get ready in case the virus spreads: fever and inflammation reaction, quick. Specific: b-lymphocytes produce antibodies (things that stick to bacteria and foreign objects and mark them for destruction), t-lymphocytes, cytotoxic t-cells, helper t-cells, regulatory/suppressor t-cells (cid:862)na (cid:448)e(cid:863) t- or b-lymphocytes. B-lymphocytes: arise in bone marrow, expose a na ve b-lymphocyte to an antigen, memory b-cells, mature plasma cells antibodies. T-lymphocytes: arisen in bone marrow then get out and sits in thymus, where they mature, na ve t-lymphocyte, mhc proteins found in cell membranes of our cells. They are distinct to every person: mhc ii found in immune cells like macrophages (designed to eat foreign invaders) and dendritic cells, on the mhc ii there is a foreign bacterial protein.