The lymphatic system is an internal system with a range of functions and purposes within the body. There are a number of organs and tissues that make up the lymphatic system, including the spleen, the thymus, the tonsils, and the adenoids. The lymphatic systems also comprises a series of thin tubes known as the lymph vessels, and clusters of bean shaped glands, which are known as the lymph nodes.
You will find the lymph nodes are located in various parts of your body, and in some cases you can probably feel the nodes or glands, such as in the neck, in the groin area, and under the arms. There are also lymph nodes located in other areas around the body, where you will not be able to feel them, including in the abdominal area, in the chest, and in the pelvic area.
The lymph nodes are small bean-shaped glands, and form part of an important system that filters the blood, distributed and filters a colorless liquid known as lymph, fights infections in the body, and drains fluids from the tissues back into the bloodstream. The purpose of the lymph nodes in this process is to collect and destroy bacteria and viruses, thus acting as filters around the body.
The lymph nodes tend to swell up when there is an infection present in the body, although some can remain swollen from previous infections. The normal size can be up to a couple of centimetres or as small as a few millimetres. Doctors will usually check the lymph nodes around the body for signs of swelling when trying to determine whether or not there is an infection present in the body.
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