The formation of red blood cells. SYN: erythrocytopoiesis. [erythrocyte + G. poiesis, a making]

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eryth·ro·poi·e·sis i-.rith-rō-pȯi-'ē-səs n, pl -e·ses -.sēz the production of red blood cells (as from the bone marrow) called also erythrocytopoiesis, erythrogenesis
eryth·ro·poi·et·ic -'et-ik adj

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the process of red blood cell (erythrocyte) production, which normally occurs in the blood-forming tissue of the bone marrow. The ultimate precursor of the red cell is the haemopoietic stem cell, but the earliest precursor that can be identified microscopically is the proerythroblast. This divides and passes through a series of stages of maturation termed respectively early, intermediate, and late normoblast, the latter finally losing its nucleus to become a mature red cell. See also haemopoiesis.

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eryth·ro·poi·e·sis (ə-rith″ro-poi-eґsis) [erythro- + -poiesis] the production of erythrocytes; in the fetus and neonate it takes place in the spleen and bone marrow, but in older individuals it is confined to the bone marrow. Called also erythrocytopoiesis and erythrogenesis.

Medical dictionary. 2011.

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  • Erythropoiesis — is the process by which red blood cells (erythrocytes) are produced. In human adults, this usually occurs within the bone marrow. In the early fetus, erythropoiesis takes place in the mesodermal cells of the yolk sac. By the third or fourth month …   Wikipedia

  • erythropoiesis — [e rith΄rō poi ē′sis] n. [ModL < ERYTHRO + Gr poiēsis, a making: see POESY] the body process of developing red blood cells erythropoietic [e rith΄rōpoi et′ik] adj …   English World dictionary

  • Erythropoiesis-stimulating agent — Erythropoiesis stimulating agent, commonly abbreviated ESA, an agent similar to the cytokine (erythropoetin) that stimulates red blood cell production (erythropoeisis). ESAs, structurally and biologically, are similar to naturally occurring… …   Wikipedia

  • Erythropoiesis-Stimulating Agent — Erythropoiesis Stimulating Agents (kurz: ESA, zu deutsch: Erythropoese stimulierende Substanzen), sind Substanzen, welche die Bildung roter Blutkörperchen (Erythrozyten) anregen (siehe Erythropoese). Zu dieser Substanzgruppe gehören einige… …   Deutsch Wikipedia

  • erythropoiesis — noun Etymology: New Latin Date: 1918 the production of red blood cells (as from the bone marrow) • erythropoietic adjective …   New Collegiate Dictionary

  • erythropoiesis — Process of production of erythrocytes in the marrow in adult mammals. A pluripotent stem cell (CFU) produces, by a series of divisions, committed stem cells (BFU Es) that give rise to CFU Es, cells that will divide only a few more times to… …   Dictionary of molecular biology

  • erythropoiesis — erythropoietic /i rith roh poy et ik/, adj. /i rith roh poy ee sis/, n. the production of red blood cells. [1915 20; ERYTHRO(CYTE) + POIESIS] * * * …   Universalium

  • erythropoiesis — noun The production of red blood cells in bone marrow. See Also: erythropoietic …   Wiktionary

  • erythropoiesis — n. formation of red blood cells …   English contemporary dictionary

  • erythropoiesis — [ɪˌrɪθrə(ʊ)pɔɪ i:sɪs] noun Physiology the production of red blood cells. Derivatives erythropoietic adjective …   English new terms dictionary

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