Term Name: | primitive red blood cell |
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Synonyms: | primitive erythroblast, primitive erythrocyte, primitive erythroid cell |
Definition: | A large nucleated basophilic erythrocyte found in mammalian embryos. This cell type arises from the blood islands of yolk sacs and expresses different types of hemoglobins (beta-H1, gamma-1 and zeta) than adult erythrocytes. Considered a type of erythroblast as this cell type can enucleate in circulation. |
Ontology: | Cell Ontology [CL:0002355] |