ANP 1105 Lecture Notes - Lecture 3: Horse Length, Lymphocyte, Lingual Tonsils

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Joanne Savory

Document Summary

5. 1 describe the structure and explain the main functions of the vessels and organs of the lymphatic system: returns fluids that leaked from blood vessels back to blood; maintain fluid volume. 3 parts: network of lymphatic vessels (lymphatics, lymph: fluid in vessels; plasma with some proteins, lymph nodes: cleanse lymph. Lymphatic vessels: up to 3 l of leaked fluid plus plasma proteins returned to circulatory system. Lymphatic tissues/organs: essential in body defense/resistance to disease: provide structural basis of immune system, house phagocytic cells and lymphocytes, structures include spleen, thymus, tonsils, lymph nodes, other lymphoid tissues. Lymphatic system returns interstitial fluid and leaked plasma proteins back to blood via: lymphatic vessels (lymphatics): elaborate network of drainage vessels, circulates ~ 3l interstitial fluid per day, once interstitial fluid enters lymphatics, it is called lymph. One-way system; lymph flows toward heart: begins with microscopic blind-ended lymph capillaries (lacteals, everywhere except bones, teeth, bone marrow, cns.