The lymph node will capture the draining fluid from an infected organ and process the foreign material to use to make antibodies to protect the body. When we have strep throat our lymph nodes in our neck are enlarged. That is it is trying to build antibodies to fight the infection in your jaw. If you have an abscessed tooth on your left jaw, then the lymph node under that jaw will be inflamed. Lymphnodes become very active in the production of antibodies for a diseased organ which it receives the lymph drainage from. These nodes house many lymphocytes, which process antigen for antibody production. Lymph nodes are located strategically along the lymph circulatory system. The fluid present in such swelling is usually lymph. When limbs do not move the lymph flow stagnates which leads to swelling. Lymph circulates by the action of muscles and takes advantage of other areas of the body such as the negative pressure of the chest cavity. The lymph fluid circulates but does not have a pump like the heart for circulation. Lymphocytes are the white blood cells responsible for producing antibodies. Lymph fluid is composed of water, proteins (antibodies) and lymphocytes. Lymph flow is essential to life yet is one of the least understood systems of the body. Lymph is fluid that circulates through the entire body much like blood. The lymphatic system is a system of very thin walled vessels that carry lymph. Lymph nodes are located at points of the lymphatic system. Internal lymph nodes are present, but unless they are very large, they cannot be felt. Peripherial indicates that they are on the outside. The palpable lymph nodes are called peripheral lymphnodes. Lymph nodes can be found by careful palpation to identify these small soft structures. Lymph nodes are very important anatomical structures. Psittacine Beak and Feather Disease (PBFD).
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