Editing Haematopoiesis (section)

===Terminology===
Between 1948 and 1950, the Committee for Clarification of the Nomenclature of Cells and Diseases of the Blood and Blood-forming Organs issued reports on the nomenclature of blood cells.<ref>{{Cite journal |date=May 1948 |title=FIRST report of the committee for clarification of the nomenclature of cells and diseases of the blood and blood-forming organs |url=https://academic.oup.com/ajcp/article-abstract/18/5_ts/443/4828542 |journal=American Journal of Clinical Pathology |volume=18 |issue=5 |pages=443–50 |doi=10.1093/ajcp/18.5_ts.443 |pmid=18913573 |url-access=limited}}</ref><ref>{{Cite journal |date=June 1950 |title=THIRD, fourth and fifth reports of the committee for clarification of the nomenclature of cells and diseases of the blood and blood-forming organs |url=https://academic.oup.com/ajcp/article-abstract/20/6/562/1767294 |journal=American Journal of Clinical Pathology |volume=20 |issue=6 |pages=562–79 |doi=10.1093/ajcp/20.6.562 |pmid=15432355 |url-access=limited}}</ref> An overview of the terminology is shown below, from earliest to final stage of development:{{cn|date=September 2024}}
* [root]blast
* pro[root]cyte
* [root]cyte
* meta[root]cyte
* mature cell name

The root for erythrocyte colony-forming units (CFU-E) is "rubri", for granulocyte-monocyte colony-forming units (CFU-GM) is "granulo" or "myelo" and "mono", for lymphocyte colony-forming units (CFU-L) is "lympho" and for megakaryocyte colony-forming units (CFU-Meg) is "megakaryo". According to this terminology, the stages of red blood cell formation would be: rubriblast, prorubricyte, rubricyte, metarubricyte, and erythrocyte. However, the following nomenclature seems to be, at present, the most prevalent:

{| class="wikitable"
! Committee || "lympho" || "rubri" || "granulo" or "myelo" || "mono" || "megakaryo"
|-
|''Lineage''||[[Lymphoid]]||[[Myeloid]]|| Myeloid || Myeloid || Myeloid
|-
|''CFU''||[[CFU-L]]||[[CFU-GEMM]]→[[CFU-E]]|| CFU-GEMM→[[CFU-GM]]→[[CFU-G]]|| CFU-GEMM→[[CFU-GM]]→[[CFU-M]]|| CFU-GEMM→[[CFU-Meg]]
|-
|''Process''||[[lymphocytopoiesis]]||[[erythropoiesis]]||[[granulocytopoiesis]]||[[monocytopoiesis]]||[[thrombocytopoiesis]]
|-
|''[root]blast''||[[Lymphoblast]]||[[Proerythroblast]]||[[Myeloblast]]||[[Monoblast]]||[[Megakaryoblast]]
|-
|''pro[root]cyte''||[[Prolymphocyte]]||[[Polychromatophilic erythrocyte]]||[[Promyelocyte]]||[[Promonocyte]]||[[Promegakaryocyte]]
|-
|''[root]cyte''|| – ||[[Normoblast]]||[[Eosinophilic myelocyte|Eosino]]/[[neutrophilic myelocyte|neutro]]/[[basophilic myelocyte]]||  ||[[Megakaryocyte]]
|-
|''meta[root]cyte''|| Large [[lymphocyte]]||[[Reticulocyte]]|| Eosinophilic/neutrophilic/basophilic [[metamyelocyte]], Eosinophilic/neutrophilic/basophilic [[band cell]]||[[Early monocyte]]|| -
|-
|''mature cell name''|| Small [[lymphocyte]]||[[Erythrocyte]]||[[granulocytes]] ([[Eosinophil|Eosino]]/[[neutrophil|neutro]]/[[basophil]]) ||[[Monocyte]]||[[thrombocytes]] ([[Platelets]])
|}

[[Osteoclast]]s also arise from hemopoietic cells of the monocyte/neutrophil lineage, specifically CFU-GM.