All organisms have immune systems and the functional role of these devices is to maintain the vitality of cells and tissues are the object and to identify foreign substances that infiltrate him and get rid of these exotic materials, whether harmful or beneficial.
· Bone marrow is a factory which is inside red blood cells, and platelets, and white cells also three kinds of cells arise from the mother cell, which specializes in the production of a certain type then grow these cells under the influence of certain substances secreted by special cells or specialized also exists in the bone marrow.
* Gland Iemusip After you configure the lymphocytes in the bone marrow out of these cells into the gland Iemusip and begin to specialization and training to do their part for career and is training program in the major impact of certain hormones produced by the gland at this stage out of the lymphocytes to the blood and become responsible for what is called cellular immunity, and it that recognize the body's own cells or the same alien cells that enter the body deliberately or presentation of these cells by virtue of specialization do not attack what is specific to the same body, but can identify objects or alien cells and is working to eliminate them.
* Lymph nodes and spleen after the exit of lymphocytes from the bone marrow and then prepared and specialization in the hypothalamus Iemusip it into the blood and blood-borne turn to different tissues, spleen and lymph through the liquid up to the lymph glands.
* Tonsils and lymph nodes other than the lymph nodes that reside in specific places of the body below the armpit and upper thighs This means that the lymphocytes spread everywhere in the body, either blood or skin, and is in constant motion and conducts its business in the search for any foreign body slipped to the tissues of the body's internal and the vital role Lozatin immune.
Blood cells are blood, many kinds of white cells that protect the body from the enemies, microbes and foreign objects include type I cells of natural immunity, including the white cells of granulocytes and natural killer cell non-specialized in their work and the second type includes cells of HIV divided into nodes (C) and lymph (b) either Type III includes etc.