BISC 3221 Chapter Notes - Chapter 23: Antigen Presentation, Red Pulp, Phagocytosis

• School: Fordham University
• Department: Biological Sciences
• Course: BISC 3221
• Professor: Craig Frank

Document Summary

23. 2 structure of lymphatic vessels: lymphatic vessels: carry lymph from peripheral tissues to the venous system; range in size from capillaries to ducts (large diameter collecting vessels) Inferior portion of duct = deep lumbar and intestinal trunks coming together: collects lymph from left bronchomediastinal trunk, left subclavian trunk, let ujugular trunk; empties into left subclavian vein near base of left internal jugular vein. 4: aka large granular lymphocytes, attack foreign cells, normal cells infected with viruses, cancer cells, continual policing of peripheral tissues is called immunological surveillance. Immunocompetence: ability of a lymphocyte to recognize a specific antigen. In thymus hormones (thymosin 1, thymopentin, thymulin, etc. ) produce t cells, migrate to spleen, other lymphoid organs, bone marrow: lymphocytes retain ability to divide, producing cells of same type, increase number as an immune response. 5: palatine tonsils: posterior margin of oral cavity, along boundary of pharynx to soft palate,