has part has part has_part develops_from develops from lacks_part granulocyte monocyte progenitor cell myeloid cell myeloblast FMA:83524 The most primitive precursor in the granulocytic series, having fine, evenly distributed chromatin, several nucleoli, a high nuclear-to-cytoplasmic ration (5:1-7:1), and a nongranular basophilic cytoplasm. They reside in the bone marrow. cell BTO:0000187 granulocytopoietic cell basophilic cytoplasm increased nucleus size euchromatin azurophil granule