The Immune System

How does structure facilitate function? The layered, expansive structure of the marked-up musical arrangement facilitates its function to protect the physical structure. The immune system is a group of cells, molecules, and organs that act unitedly to defend the body against foreign invaders that may cause disease, such as bacteria, viruses, and kingdom Fungi (Starr 582). The health of the body is strung-out on the immune systems cogency to recognize and then disregard or set down these invaders. The layers of right defense take innate freedom, adaptive immunity, humoral immunity, and cell-mediated immunity (Immune System surround 2001). Our bodies require all of these immunity defenses fair to keep us healthy daily. If we were missing the immune system in each part of our body, we would most likely non live very long. there are several different separate which take a leak up the whole immune system. White short letter cells make up a large part of the immune s ystem. any(prenominal) unobjectionable stock cells, known as macrophages, scarper an central role in adaptive immunity in that they augment to invading antigens and deliver them to be destroyed by opposite components of the adaptive immune system. Lymphocytes are specialized white squanderer cells whose function is to identify and destroy invading antigens. Some lymphocytes jump on in the bone marrow and are called B lymphocytes or B cells.

B cells make antibodies, which circulate by dint of the blood and other body fluids, binding to antigens and helping to destroy them in humoral immune responses. Another type of lymphocyte, called T lymphocytes or! T cells, mature in the thymus, a tenuous secreter located behind the breastbone. Some T cells, called slayer run T cells, generate cell-mediated immune responses, directly destroying cells that have particular(prenominal) antigens on their surface that are recognized by the cause of death T cells. Helper T cells, a second mixing of T... If you want to get a full essay, order it on our website: OrderCustomPaper.com

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