hematopoisis/process of hematopoisis/growth factor of hematopoisis/in தமிழ்

hematopoisis/process of hematopoisis/ growth factors of hematopoisis /in தமிழ் process of formation, development and differentiation of blood cells i.e. RBC’S, WBC’S and platelets is called as haematopoiesis. All blood cells arise from a type of cell called the hematopoietic stem cell (HSC). Stem cells are cells that can differentiate into other cell types; they are self- renewing—they maintain their population level by cell division. Thus, the hematopoietic stem cell is multipotent, or pluripotent, able to differentiate in various ways and thereby generate erythrocytes, granulocytes, monocytes, mast cells, lymphocytes, and megakaryocytes. These stem cells are few, normally fewer than one HSC per 5 x 10 4 cells in the bone marrow. In humans, hematopoiesis, begins in the embryonic yolk sac during the first weeks of development. Here, yolk-sac stem cells differentiate into primitive erythroid cells that contain embryonic hemoglobin. In the third month of gestation, hematopoietic stem cells migrate from the yolk sac to the fetal liver and then to the spleen; these two organs have major roles in hematopoiesis from the third to the seventh months of gestation. After that, the differentiation of HSCs in the bone marrow becomes the major factor in hematopoiesis, and by birth there is little or no hematopoiesis in the liver and spleen. lympocytes :    • cells of immune system in tamil   cytokines:    • cytokines/actions of cytokines nomenc...   #viral vedio of hematopoisis #trending vedio of hematopoisis #viral vedio process of hematopoisis ‪@Sireesha-Life-Study.‬