Normoblast


Normoblast

An erythroblast is a type of red blood cell which still retains a cell nucleus. It is the immediate precursor of a normal erythrocyte.

Contents

Nomenclature

The term normoblast is sometimes used as a synonym for erythroblast, but at other times it is considered a subcategory. In the latter context, there are two types of erythroblasts:

Development

There are four stages in the development of a normoblast.

HSC=Hematopoietic stem cell , Progenitor=Progenitor cell , L-blast=lymphoblast , Lymphocyte , Mo-blast=Monoblast , Monocyte , Myeloblast , Pro-M=Promyelocyte , Myelocyte , Meta-M=Metamyelocyte , Neutrophil , Eosinophil , Basophil , Pro-E=Proerythroblast , Baso-E=Basophilic erythroblast , poly-E=Polychromatic erythroblast , Ortho-E=orthochromatic erythroblast , Erythrocyte , Promegakaryocyte , megakaryocyte , Platlet
Illustration Description Image
Proerythroblast.png Pronormoblast
Basophilic erythroblast.png Basophilic normoblast Prorubricyte.jpg
Polychromatic erythroblast.png Polychromatic normoblast (also polychromatophilic) Rubricyte.jpg
Orthochromatic erythroblast.png Orthochromatic normoblast (also orthochromatophilic) Metarubricyte.jpg

Additional images

See also

External links


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • normoblast — NORMOBLÁST s.n. Globulă roşie nedezvoltată din măduva hematopoietică, care, în cazul anemiei, poate ajunge şi în sânge. [< fr. normoblaste, cf. gr. norma – regulă, blastos – vlăstar]. Trimis de LauraGellner, 24.06.2005. Sursa: DN  NORMOBLÁST… …   Dicționar Român

  • normoblast — normoblast. См. нормобласт. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Normoblast — Rote Blutkörperchen Erythropoese (auch Erythropoiese) ist der Vorgang der Bildung und Entwicklung der Erythrozyten (rote Blutkörperchen). Sie erfolgt vor der Geburt in Dottersack, Leber, Milz und Knochenmark, nach der Geburt nur noch im… …   Deutsch Wikipedia

  • normoblast — ▪ biology       nucleated normal cell occurring in red marrow as a stage or stages in the development of the red blood cell (erythrocyte). Some authorities call the normoblast a late stage erythroblast, the immediate precursor of the red blood… …   Universalium

  • normoblast — Nucleated cell of the myeloid cell series found in bone marrow, that give rise to red blood cells. See erythroblast …   Dictionary of molecular biology

  • normoblast — noun erythroblast …   Wiktionary

  • normoblast — A nucleated red blood cell, the immediate precursor of a normal erythrocyte in humans. Its four stages of development are: 1) pronormoblast, 2) basophilic n., 3) polychromatic n., and 4) orthochromatic n. See …   Medical dictionary

  • Normoblast — Nor|mo|blạst, der; en, en <meist Pl.> [zu ↑Norm u. griech. blastós = Spross, Trieb] (Med.): kernhaltige Vorstufe eines roten Blutkörperchens von der ungefähren Größe u. Reife eines normalen roten Blutkörperchens …   Universal-Lexikon

  • normoblast — nor|mo|blast Mot Agut Nom masculí …   Diccionari Català-Català

  • Normoblast — Nor|mo|blạst 〈m.; Gen.: en, Pl.: en; Med.〉 kernhaltige Vorstufe des roten Blutkörperchens [Etym.: <lat. norma »Richtschnur« + grch. blastos »Keim«] …   Lexikalische Deutsches Wörterbuch


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.