The main function of lymph nodes is to act as a drainage system by absorbing and expelling proteins, dead cells, bacteria and other waste products from the body. Basically they clean and filter the lymph before it is returned to the blood.
They are also a major part of the immune system, as they produce antibodies and lymphocytes.
If there is an infection present in the body, the lymph nodes produce more lymphocytes to combat the infection. As they are very active at this stage, they may swell and become painful and hot...
filter lymph
The lymphnode system's primary function is immunity. If it weren't for this system we would probably not exist. Other functions include: fluid and protein balance, digestion, excretion and transportation of nutrients.
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Yes, primary nodules don't have germinal centers(active B cells) while secondary nodules do.
it is the colon and duodenum
kidney spleen small lymph nodules
the microbe of tuberculosis enters the lungs and the body responds by sealing it off inside nodules or tubercles
Lymphatic Nodules-Any of the small bodies located along the lymphatic vessels, particularly at the neck, armpit, and groin, that filter bacteria and foreign particles from lymph fluid. As lymph flows through a lymph node at least 99 % of the antigens in the lymph are removed. The lymphatic organs are organs that produces lymphocytes or is associated with lymphocyte function, for example, the lymph nodes, spleen, and thymus.
lymph capillary Lymph fluid is filtered in lymph nodes. Lymph nodes are along lymph vessels which that run along blood vessels. Lymph vessels draw in interstitial fluid (fluid between cells) and it them becomes lymph fluid. Lymph nodules are in connective tissue in place of high traffic and does not function as a filter because it's not along a lymph vessel.
White blood cells, specifically those called lymphocytes.
The submucosa (it needs to make sure that no external haters cruise through and pop a cap in their homies).
Lymph
To help protect the body by removing forgien material
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 .
Lymph nodes are bean-shaped swellings that are found along the length of lymph vessels, forming clusters in the neck, armpit and groin areas. The lymph node is surrounded by a fibrous capsule, and each node is filled with a mes-like tissue (trabeculae), which slows the flow of lymph and supports the white blood cells and destroy pathogens. The nodes also contain lymphocyte nodules that are surrounded by sinuses. The node can be divided into an outer cortex and inner medulla. During infection, you may notice that the lymph nodes swell and become painful.