Lymphatics and immunity

Lymphatics and immunity - Lymphatic System and Immunity...

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Lymphatic System and Immunity OBJECTIVES: Describe lymphatic vessels: Discuss structure/function of several lymphatic organs Lymph nodes Tonsils Thymus Spleen Briefly discuss non-specific and specific immunity
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Lymphatic System Overview Recall that the exchange of “stuff” between blood and tissue occurs across the walls of capillaries They are thin-walled and thus “stuff” (including fluid from the plasma) moves across the walls into the tissue and vice-versa Basically, lymph vessels provide a filtration system for our tissue fluids Returns filtered fluid back to the venous system just before it dumps back into heart
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Lymphatic System Lymph vessels are found throughout the body, sort of like an auxillary venous system In addition to these vessels, there are a several lymph tissues and lymph organs that play an important role in lymphatic function LYMPH TISSUES - connective tissue dominated by lymphocytes tonsils MALT
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