Red bone marrow, spleen, lymph nodes, lymphoid tissue of the intestines and tonsils. The process of hematopoiesis is regulated by the hypothalamus, as well as by erythropoietins, leukopoietins and thrombopoietins, substances produced in the kidneys; vitamins C, B6, folic acid stimulate hematopoiesis. Blood cells in the liver and spleen are destroyed.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.