DevelopmentoftheHematopoieticSystem&BloodCellCountsDr.JieYu,MD.ProfessorThedepartmentofPediatric,Hematology/OncologyHEMATOLOGY/ONCOLOGY,CHILDREN’SHOSPITALContentsDevelopmentofhematopoieticsystemHematopoieticorgansHematopoieticbloodcellsCharacteristicofcellcountsandhemoglobinRBCandHblevelHemoglobinWBC/Platelet/BloodvolumeAnemiaHEMATOLOGY/ONCOLOGY,CHILDREN’SHOSPITALDevelopmentofHematopoieticSystemHEMATOLOGY/ONCOLOGY,CHILDREN’SHOSPITALHEMATOLOGY/ONCOLOGY,CHILDREN’SHOSPITALIntheembryoandfetus,constantchangescharacterizeallphasesofhematopoiesis.HEMATOLOGY/ONCOLOGY,CHILDREN’SHOSPITALDevelopmentofHematopoieticOrgans•Fetalhematopoiesis–Meso...