the blood stem cells located in the bone marrow cell memory. Approximately 50% of the cells resulting from cell division remain undifferentiated (→pluripotente stem cells), while the remaining cells are already differentiated into precursors of their series (determined stem cells), which then mature further in the production memory and - without further divisions - reach full maturity (blood permeability) in the maturation memory, after which they remain ready for retrieval in the reserve memory.
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