monoblast SNOMEDCT:53945006 colony forming unit monocyte Morphology: mononuclear cell, diameter 12-20 _M, non-granular, N/C ratio 3/1 - 4/1; markers: CD11b (shared with many other myeloid cells); location: Adult: bone marrow; fetal: liver, Yolk Sac; role or process: hematopoiesis, monocyte development; lineage: hematopoietic, myeloid. A myeloid progenitor cell committed to the monocyte lineage. This cell is CD11b-positive, has basophilic cytoplasm, euchromatin, and the presence of a nucleolus. CALOHA:TS-1195 ZFA:0009017 CFU-M monocyte stem cell NCIt:C13014 FMA:83553 colony forming unit macrophage myeloid cell monopoietic cell