Lymph nodes are present throughout the body, the focus in some areas such as the neck, armpit, groin. Lymph nodes plays an important role with regard to the activity of the immune system. They contain the lymph cell and have the function as filters or traps keep the foreign element, can become inflamed and swelling when doing this task. Lymph nodes appear to demonstrate the body's immune systems tend to become inflamed because of infection.
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