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After birth, most production is limited to red bone marrow in specific regions, but some white blood cells are produced in lymphoid tissue. All types of formed elements develop from a single cell type -- stem cell (pleuripotential cells or hemocytoblasts).Seven different cell lines, each controlled by a specific growth factor, develop from the hemocytoblast.hen a stem cell divides, one of the daughters remains a stem cell and the other becomes a precursor cell, either a lymphoid cell or a myeloid cell. These cells continue to mature into various blood cells. A leukemia can develop at any point in cell differentiation.
Stem cells are the body's raw materials â cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.hese stem cells come from embryos that are three to five days old. At this stage, an embryo is called a blastocyst and has about 150 cells. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body.