In anatomy, lymph nodes are considered to be part of the immune system. Their responsibility is to protect the body from infections, bacteria and disease. Lymph nodes do this by producing white blood cells, scientifically referred to as lymphocytes.
They filter out harmful things that enter the body such as bacteria, viruses, and dead tissue and eliminate it from the body in an attempt to make the body healthy again. When one of these things enters the body, the immune system is activated to fight against it and the lymph nodes swell and they begin to produce large numbers of white blood cells.
There are approximately 500 to 700 lymph nodes that are scattered throughout various locations in the human body.
The first set of lymph nodes are known as the head and neck lymph nodes.
The second set of lymph nodes are known as the axillary lymph nodes.
The third set of lymph nodes are known as mediastinal nodes.
The fourth set of lymph nodes are located in the lungs.
The fifth set of lymph nodes are located in the arms.
The sixth set of lymph nodes are known as the front messentric nodes.
The seventh set of lymph nodes are known as the back messentric nodes.
The eigth set of lymph nodes in the body are known as Inguinal nodes of the female body.
The ninth set of lymph nodes are the Inguinal lymph nodes of the male.
The tenth and eleventh set of lymph nodes are known as the leg nodes.
See lymph node in Webster's New World College Dictionary
See lymph node in American Heritage Dictionary 4
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