PHGY 209 Lecture Notes - Lecture 30: Antigen, Yolk Sac, Epidote
30 Oct 2016
School
Department
Course
Professor
Document Summary
Presents its antigen to the t helper cell. Bursa of fabrisi is the area of interest for people trying to immunize chicken but chicken produce resistance or something. Resectimized animals early in life can"t make antibodies: examined lymph epithelial structure, called lymphocytes b cells for bursa. Antibody producing cells for the body are lymphocytes: mature and specify in the bone marrow, each b cell can only make one lymphocyte. Taking out antibody prevents good production of antibody and no cell mediated immune response: lympho epithelial organ, lymphocytes in the thalamus were called t cells. Yolk sac to liver to bone marrow and thymus. Stem cells from bone marrow are called pre-b (before maturation: those going to thymus relocate and are called pre-t. Two labels for t cell: cd4 for the helper, cd8 for the killer, before the tcell enter the thymus they are positive for both cd4 and.
