Cells3 - o Lymphoid - lymphocytes of different types o...

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Cells, organs and tissues of the immune system This note covers cell, organs and tissue of the immune system. Introduction As with any other body system, the immune system comprises multiple cell types ( leukocytes ) organised These lymphoid organs are dispersed throughout the body and communicate via the circulatory systems (blood and lymph). Leukocytes are not found in significant numbers in other tissues EXCEPT when there is inflammation ; then very large numbers of leukocytes will be present. So what cells contribute to the Immune System? Cells: leukocytes, all derived from bone marrow:
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Unformatted text preview: o Lymphoid - lymphocytes of different types o Myeloid - dendritic cells, monocytes/macrophages and granulocytes Other cells also involved in immunity: o endothelial cells (also bone marrow-derived) o epithelial cells e.g. keratinocytes How is the Immune system organised? Organised into two main lymphoid organs & tissues: o Primary - where cells of the immune system develop o Secondary - where the immune response develops All lymphoid organs are interconnected by the lymphatic and blood circulatory systems through which cells of the immune system circulate and access non-lymphoid tissues....
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Cells3 - o Lymphoid - lymphocytes of different types o...

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