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EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
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ExM.ExBI.pRBCs

Primitive erythrocytes are cells that contain embryonic hemoglobin and mobilize oxygen in the body. These cells are large nucleated cells and only populate the blood during the first 6 weeks of gestation.


Primitive erythrocytes enter circulation at E8.5 in the mouse.  In humans, they are detectable from day 18.5 of gestation.

E7.5 - E9
Red Blood Cell, RBC
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent
Version 1.1 Build 28