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CHAPTER 3  ERYTHROCYTE MATURATION   23

                                            BASOPHILIC NORMOBLAST
                                               Basophilic Erythroblast
                                                   Prorubricyte




                                                                                      Cytoplasm



                                                                                      Nucleus


                                                               B
                                                           FIGURE 3–4B  Schematic of basophilic normo-
                                                           blast.
                       A
                    FIGURE 3–4A  Basophilic normoblast.



               SIZE:  10-15 mm
               NUCLEUS:  Round to slightly oval
               Nucleoli:  0-1
               Chromatin:  Slightly condensed
               CYTOPLASM:  Dark blue
               N/C RATIO:  6:1
               REFERENCE INTERVAL:
               Bone Marrow:  1% to 4%
               Peripheral  Blood: 0%









                                                             C
                                                           FIGURE 3–4C  Electron micrograph of basophilic
                                                           normoblast (315,575).
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