BIOC21H3 Lecture Notes - Lecture 9: Lymph Node, Lymphatic Vessel, Mhc Class Ii
Document Summary
Don"t have a pump so no cardiac muscle to pump blood through them. Increased osmotic pressure at end of bloodstream due to abundance of different proteins (e. g. albumin which causes them majority of water to return to tissue) You will have small fragments of bacteria and viral components floating around in this tissue and fluid and this gets drained by the lymphatic vessels. Lymphocytes will respond to pathogens and they are the only. Wbc that can recirculate after the lysis of a blood vessel. It will be able to get into the lymphatic vessel (not capillary-too small). Anything that"s a fragment of something is referred to as an antigen because it generates an antibody (an immune response) = fragments of viral and bacterial proteins are antigens. Each b cell can only respond to 1 antigen and produce 1 antibody; billions of b-cells in your blood and each one can only respond to 1 thing and can only generate 1 antibody.