ANP 1105 Lecture Notes - Lecture 6: Immunocompetence, Bronchus, Thymosin

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Jacqueline Carnegie

Document Summary

When fluid pressure builds up in tissues, it puts pressure on the structure and creating larger spaces between the endothelial cells. Capilarries are much more permeable than cardiovascular system. Lymphocytes: t-cells (manage immune response; some are soldiers) & b-cells ( plasma cells produce antibodies to get rid of harmful bacteria present in the body) cell to cell attack (t-cells) Medulla: medullary cords & large lymph sinuses, t cells and b cells, slow fluid flow. Note the one-way flow of traffic through each lymph node. Fewer efferent pathways allow time fo the lymphocytes and macrophages to carry out their protective functions. Other lymphoid organs: like lymph nodes composed of reticular ct, but only lymph nodes filter lymph; other organs have only efferent lymphatics, spleen, largest lymphoid organ; beneath diaphragm. 3) site for lymphocyte proliferation; immune surveillance & response blood cleansing stores rbc products (iron) for recycling (also platelets and monocytes)