Blood-forming organs

Blood-forming organs, bodies in which there is a formation of blood cells. Blood-forming organs in extrauterine life of man: red bone marrow (fill in children under 4 years of bone cavity and adults continued only in the flat bones and in the epiphyses of the tubular bones), lymph and reticulo-gistiotitarnaya system. Normal bone marrow is the predominant formation of erythrocytes, granulocytes (neutrophils, eosinophils, and basophils) and platelets. Lymphocytes are produced mainly in the lymphatic system (spleen , and lymph nodes). Under pathological conditions (retikulezah, leukemia), interferes with the normal specialization departments blood system: in the spleen may encounter pockets of myeloid (bone marrow) blood and bone marrow lymphoid. Because the body is a continuous destruction of blood cells, the main function of blood-forming organs is continuous replenishment, i.e. these bodies work all the time in a certain rhythm, which is broken by the diseases. Cm. also Blood.