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Where are plasma cells found in the node?
in the medulla. More specifically, the medullary cords.
Lymph Nodules can be either Primary Nodules or Secondary Nodules?
Yes, primary nodules don't have germinal centers(active B cells) while secondary nodules do.
Where does lymph come from?
Lymph comes from the interstitial fluids spaces in blood where interstitial fluid is found. Lymph is composed mainly of white blood cells.
Explain the immune response in a lymph nodes?
First the structure of a lymph node... we have the cortex, paracortex and the medulla. It is made mainly of recticular cells, then lymphocytes and macrophage. So you have APCs presenting the antigen which enter lymph node via HEV, basically post-capillary venous swelling made of simple cuboidal cells. These allows things in blood to enter the lymph node. Then after that you have the APC interacting with B cells in the cortex and the T helper cells in paracortex. Both B and T cells get stimulated. B cells can either stay in cortex to form secondary follicles / germinal center or migrate to medullary cord to become plasma cells and secrete antibodies. The function of germinal center is to increase antibody affinity, isotope change (change classes) and differentiation and proliferation.
What are the lymph nodes made out of?
lymph nodes are made out of lymphoid tissuethat is able to receive the lymph and return cleaned lymph back into the circulation. Generally the cell types found in the lymph nodes are antigen-presenting cells (specifically dendritic cells), T cells (both helper CD4 T cells and killer CD8 T cells) and B cells (which produce antibodies).
What organs are found in the lymphatic system?
Lymph vessels,lymph nodes,spleen,
Which kind of cells mostly found in lymph?
White blood cells, specifically lymphocytes, are the most commonly found cells in the lymph. These cells are an essential part of the immune system and play a vital role in recognizing and fighting infections in the body.
The germinal centers in lymph nodes are largely sites of?
Is the central ,light staining region within a lymphoid follicle in spleen ,lymph nodes,or mucosal lymphoid tissue that forms during T cell-dependent humoral immune response and is the site of B cell and antibodies affinity maturation and antibodies class swiching
What is the organ that houses developing lymphocytes?
The appendix is a narrow blind sac extending from the beginning of the colon that stores lymph cells. The appendix is a narrow blind ended sac that has nothing to do with lymph whatsoever. The lymph cells are stored in the lymph nodes.
Where are the white blood cells found in the human body?
In the blood vessels and in the lymph vessels.
What happens inside lymph nodes?
if bacteria enter a wound and are not ingested by the white cells of the blood or lymph,they will be carried in the lymph to a lymph node and white cells there will ingest them
What are lymphoid follicles?
Lymphoid follicles are small, organized structures found within lymphoid tissues, such as lymph nodes and the spleen, where immune responses are initiated. They primarily consist of B cells arranged in a germinal center surrounded by a mantle zone of T cells and other immune cells. These follicles play a crucial role in the production of antibodies and the generation of memory B cells during immune responses to pathogens. Their structure allows for the efficient interaction and activation of various immune cells.
