ANFS140 Lecture Notes - Lecture 2: Tunica Intima, The Fluid, Cecum
23 May 2016
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Document Summary
Microcirculation: lymphatic vessel: arterial blood flow coming into the capillary bed and venule outflow. 90% reabsorbed by capillaries, in vascular tree, which is local exchange of waste material. Lymphatic fluid from tissues: fluid drains into lymph nodes and finally into the right subclavian vein. Lymph node r. thoracic duct joins gen. circulation where r. subclavian vein, the jugular and brachiocephalic trunk meet. Very low pressure system (almost 0) and therefore wasn"t dissected bc it collapses: lymph nodes survey fluid drained from tissues for abnormalities. Looking for parasitic, viral, fungal, bacterial, etc. proteins. These are drained back into the fluid allows immune system to see what"s washing out of tissues: immune response may be induced in tissues or lymph node or both. Resolves the problem within the tissues if foreign matter is found. Great way for immune system to see what"s happening throughout the body. Lymphatic circulation: thoracic duct-- largest lymphatic vessel of the lymphatic system.
