The Human 's Lymphatic System

1752 WordsNov 21, 20168 Pages
Jacob Holloway Jennifer Reaves A&P II 19 November 2016 HIV Approximately 1.2 million people are living with HIV in the United States alone. Of those 1.2 million, 13 percent did not know they were infected (Basic Statistics, 2016). These numbers are very startling. HIV, or Human Immunodeficiency Virus, attacks the body’s immune system, more specifically its T cells. With HIV weakening the immune system it can lead to a greater risk for infection, and eventually Acquired Immunodeficiency Syndrome (AIDS). The immune system is not an actual system in the body but more a process of the body. The immune “system” works through the body’s lymphatic system. The human’s lymphatic system is an incredible and intricate factory, working day and night to keep the body free of foreign pathogens, bacteria, viruses, and other unwanted guests. Composed of lymph nodes and vessels, carrying lymph and waste though the body to be disposed of, its job is to locate and get rid of anything that has the potential to do damage to the body, or get rid of something that’s just not supposed to be there. One specific part of the lymphatic system that helps with the body’s defense against foreign pathogens is the T-lymphocytes, or T cells. These cells are made and matured in the thymus, which is significantly larger in children because of the developing and adapting immune systems. The body has several different types of T cells. The functions of the T cells are to fight against pathogens in several
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