Any upper respiratory infection can cause lymph nodes to swell in this area. This is because lymph nodes will swell in response to infection in the area they are located. You may notice that your doctor will routinely feel the lymph nodes in your neck, behind your ears and under your jaw during a routine exam. Lymph nodes will swell as a reaction to an illness, infection or injury. The fluid travels slowly through the body, passing through one or more nodes before it reaches its final destination in your chest. The nodes are able to do this because they contain immune cells that help your body to break down infection in the body. The lymph nodes are important as they remove impurities such as viruses, bacteria and even cancer cells from the lymph fluid as it passes through the node. Some lymph nodes are close to the skin’s surface, while others are located deep within the body. There are approximately 600 lymph nodes in the body that are located at intervals along the lymph vessels. They work as a filter to remove the body’s impurities that are in the body’s muscle tissue, outside of the bloodstream. Lymph nodes are found along the lymph vessels similarly to beads along a necklace chain. T lymphocytes (T cells):These cells either boost the activity of other immune cells or destroy germs and abnormal cells.B lymphocytes (B cells): These cells protect the body from bacteria and viruses by making antibodies.Talk to a Doctor There are two main types of lymphocytes: It also carries nutrients such as oxygen and infection-fighting white blood cells called lymphocytes throughout the system. As the fluid flows through the lymph vessels it removes impurities such as bacteria and carbon dioxide. The fluid that flows through the lymph vessels also plays an important role in your immune system. For example, if a lymph node is located under the armpit it is filtering lymph fluid from the fingers as well as the arms. The lymph vessels gather fluid throughout the body and in most cases it is filtered through several nodes. Lymph vessels run along the body much like your veins although even the biggest lymph vessel is smaller than your largest vein. The lymph vessels are formed together in a complex pathway in the body which draws lymph fluid away from the body’s capillary walls and towards the chest where it is absorbed into the bloodstream. Lymph vessels work together within a network to draw fluid, waste, viruses and bacteria from the body. Your lymphatic system plays an important role in your immune system. Lymph nodes are small bean-shaped tissues that act as filters within the lymphatic system. While a swollen lymph node could be the cause of something relatively harmless, it could also be an indication of something much more serious. Swelling of your lymph node in any part of your body could indicate an injury, illness or infection. Lymph nodes are oval-shaped pieces of lymphatic tissue that play an important role in your immune system. A lump or bump could mean a swollen lymph node. Yet it is important to pay attention to any significant changes in this often overlooked area of your body. Swollen lymph nodes in the armpit could be an indication of an illness, injury or infection in the body.Īrmpits are not one of the more glamorous areas of the body.
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