PHGY 209 Lecture Notes - Mhc Class Ii, Mhc Class I, Adaptive Immune System
1 Apr 2013
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Was thought important but it was discovered opposite to have borrowed from the innate response to make us more efficient. They have neither humoral antibody, nor the ability to generate a cell-mediated immune response . The analyses of these children after death, shows us a lot of the immune system They have no thymus-gland bone marrow are hypo-cellular, no lymphocytes or lymph nodes . Started by gay-related immune deficiency then was called-->acquired immune deficiency syndrome(aids) viral infection human immunodeficiency virus (hiv) Cause: a particular cell that is missing or rapidly drops off and when it drops below a certain level, the person is so sick that they die . Organs of the immune system: primary organs. (stem cells from the yolk sac and fetal liver) exam !!! (prior to birth) (these cells are passed on first to the bone marrow then the. Thymus gland: secondary organs(before birth these secondary organs are populated with b-cells and t-cells from the primary )
