how many lymph nodes are in body?
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Humans have approximately 500–600 lymph nodes distributed throughout the body, with clusters found in the underarms, groin, neck, chest, and abdomen.
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Inguinal lymph nodes are lymph nodes in the human groin. Located in the femoral triangle of the inguinal region, they are grouped into superficial and deep lymph nodes.
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Your lymph nodes, also called lymph glands, play a vital role in your body's ability to fight off infections. They function as filters, trapping viruses, bacteria and other causes of illnesses before they can infect other parts of your body.
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Tonsils in the back of the throat are also lymph nodes, and they are the most visible ones in the body.
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Regional Lymph Nodes. There are between 100 and 150 lymph nodes in the mesentery of the colon. Regional lymph nodes are the nodes along the colon, plus the nodes along the major arteries that supply blood to that particular colon segment.
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Why Lymph Nodes Swell There are more than 600 small, kidney bean-shaped lymph nodes in clusters throughout your body -- under your neck, in your armpits and groin, and in the middle of your chest and belly.
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Lymphatic vessels transport lymph to lymph nodes. These structures filter lymph of pathogens, such as bacteria and viruses. Lymph nodes also filter cellular waste, dead cells, and cancerous cells. Lymph nodes house immune cells called lymphocytes.
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Most lymph channels and nodes reside deep within the body and are too small to be assessed by physical examination. However, superficial, larger nodes, close to or more than one centimeter in diameter-primarily located in the head and neck region, the axillae and the inguinal areas-can be palpated and assessed.
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Lymph nodes contain lymphocytes, a type of white blood cell, and are primarily made up of B cells and T cells. B cells are mainly found in the outer cortex where they are clustered together as follicular B cells in lymphoid follicles, and T cells and dendritic cells are mainly found in the paracortex.
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The term "swollen glands" usually refers to enlarged lymph nodes. In fact, lymph nodes are not actually glands. They are small bundles of white blood cells that are present in multiple areas throughout our body.
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['bone marrow.', 'spleen.', 'thymus gland.', 'lymph nodes. lymph nodes.', 'tonsils.']
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Lymph nodes are generally circular, bean-like organs that are dispersed throughout the body. The lumbar lymph nodes are located in the region of the body between the diaphragm (a muscle in the lower rib cage that helps with breathing) and pelvis, known as the lumbar region.
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If you only have swelling in one or two lymph nodes, you likely have an infection in a nearby part of your body. For example, swelling in the lymph nodes of your throat typically indicate some type of throat infection. Occipital lymph nodes are those found on the back of your head, near the base of your skull.
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What You Should Know About Normal Nodes: If you have found a pea-sized or bean-sized node, this is normal. Normal lymph nodes are smaller than ½ inch or 12 mm. Don't look for lymph nodes, because you can always find some.
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Inguinal lymph nodes are lymph nodes located in the groin. Other lymph nodes are found in the armpits, neck, behind the ears, and under the chin. All lymph nodes are part of the lymphatic system, which includes lymph fluid, lymph vessels, bone marrow, and organs such as the thymus, adenoid, tonsil, and spleen.
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Lymph nodes are small glands that filter lymph, the clear fluid that circulates through the lymphatic system. They become swollen in response to infection and tumors. Lymphatic fluid circulates through the lymphatic system, which is made of channels throughout your body that are similar to blood vessels.
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Lymph nodes and what they do Lymph vessels route lymph fluid through nodes throughout the body. Lymph nodes are small structures that work as filters for harmful substances. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid.