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The lymph nodes store and make B cells which fight antigens (foreign substances in the body).
To elaborate on and attempt to complete the answer, the lymph nodes are where the adaptive immune response begins and is maintained (contrasted with the innate immune response). Dendritic cells circulate throughout the body and pick up antigens (foreign substances in the body, e.g., those of microorganisms such as bacterial cell wall proteoglycans) associated with infected tissue and upon returning to the lymph nodes present them to T and B lymphocytes that pass through or may even reside at the node. The lymphocytes that now recognize the particular antigen proliferate and return to the main circulation and attack the associated microorganism. The adaptive immune response, as by proliferation of antigen specific lymphocytes, is also maintained at the lymph nodes after the infection is gone in case reinfection by the same microorganism occurs.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoLymph nodes produce lymph, which filters waste and bacteria so they do not enter the bloodstream. When the presence of a foreign substance is recognized, they produce T-cell and B-cell lymphocytes, which go to the infected area to destroy the invader.
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What are subcentimeter retroperitoneal lymph nodes?
Lymph nodes are bean shaped organs, usually small in size with main function of fighting infection. They are located throughout the body including axilla, inguinal area and peritoneum or abdomen. Retroperitoneal or behind peritoneum- deep within abdomen. Thus retro peritoneal lymph nodes are nodes located deep within the belly (closer to the spine).
The major organs of the lymphatic system?
Some lymphatic organs are lymph nodes, tonsils, the spleen, and the thymus.
What does the lymphatic system do?
he main function of the lymphatic system is to transport lymph fluid throughout the body, which in turn helps with the functions of the immune system. The main parts of the lymphatic system are the lymph nodes, lymph vessels and lymph fluid, but the thymus, spleen, adenoids and tonsils are also considered part of the system.
What does lymphatic system do?
he main function of the lymphatic system is to transport lymph fluid throughout the body, which in turn helps with the functions of the immune system. The main parts of the lymphatic system are the lymph nodes, lymph vessels and lymph fluid, but the thymus, spleen, adenoids and tonsils are also considered part of the system.
What body parts are used in the immune system?
There are four main organs: lymph nodes, thymus, spleen and bone marrow.
What is a main marker for the progression of HIV infection?
A main marker or sign for the progression of HIV infection includes flu-like symptoms, fever, headache, tiredness, fatigue, enlarged lymph nodes, and swollen lymph glands,
Why are lymph nodes removed in cancer treatments?
Removal of Lymph NodesThe lymph nodes are a way of travel for breast cancer cells. This is the first place they go if the cancer has spread. They remove the lymph nodes to see if the cancer has spread. Hopefully, the breast cancer cells will not have gone past the lymph nodes, and with removal of them and the cancer in the breast, the cancer is gone. Unfortunately, this is not always the case, and the cancer can spread to other parts of the body through the lymph nodes. The more lymph nodes that are positive for cancer, the more likely the cancer has spread to distant places in the body. Early detection is the key! Keep up on the mammograms and self examination. It could save your life!AnswerThe above poster gave an excellent answer, but just wanted to add that lymph nodes are throughout our body and are filters for our body, thus, of there are cancer cells they can travel through lymph nodes.
How many lymphnodes in the human body?
the lymphatic system is a very complex and intricate system with many lymphatic tissues, the most common of them being: the lymph nodes. They are usually clustered in the cervical, axillary, popliteal, cubital and inguinal regions. Thus, they are dispersed throughout the body relatively evenly. The lymphatic system has two main roles: to return interstitial fluid back to the blood circulation, and it also has an immune function. Lymph nodes are small fitering structures that filter the lymph fluid and then it is returned to the blood. Any foriegn bodies or debris are stopped at the lymph node and macrophages and other lymphocytes are deployed for phagocytosis. They kill and ingest the forigen particles. Hence, a lymph node usually gets swollen after an infection as the lymphocytes have acummulated and are fighting it. Thus, lymph nodes help to prevent the spread of disease throughout the body and act as part of a defence mechanism. Hence, it is very important to have many lymph nodes dispersed in the body as a defence mechanism should there be an infection. Despite the slow movement of lymph itself, if a pathogenic cell was to circulate through the body, infection would spread and because the lymphatic system is closely linked with the circulatory system, the pathogenic cell will also travel through the bloodstream and can reach any part of the body. Lymph nodes are also the maturation site of various lymphocytes. Lymph nodes become hazardous when a carcinogenic cell is trapped and begins to proliferate in the slow moving fluid at a lymph node. it slowly travels from node to node until the lymphoma spreads. In these cases, the lymph nodes affected are best to be removed in order to prevent further spreading of the cancer. hope this helps. i am a first year PT student from australia.
What is the main structure located in mediastinum?
The main structure located within the mediastinum is the heart.
Where are most lymph nodes in the body?
Your nymph nodes are located next to your tonsils, in your groin, in your armpit, in your hypothalamus, and many other areas, though these are the main sites.Lymph nodes are found all throughout the body, and act as filters or traps for foreign particles. Humans have approximately 500-600 lymph nodes distributed throughout the body, with clusters found in the underarms, groin, neck, chest, and abdomen.
What substance do lymph nodes produce that assist in immunity diseases?
Lymph nodes are a part of the lymphatic system, a component of the body's immune system.There are several groups of lymph nodes, which are small, bean-shaped, soft nodules of tissue.The ones most frequently enlarged or swollen are found in the neck, under the chin, in the armpits, and in the groin.The main function of the lymphatic system is to produce, maintain and distribute lymphocytes.Lymphocytes identify and attack damaged or infected cells in the blood.
What organs are affected by having strep throat?
esophagus tonsils lymph nodes located in you neck and throat thoses are the main oragns affect by streptococcal
