Baghdad Sci.J volume 14, issue 2, P299-310 2017 DOI: 10.21123/bsj.14.2.299-310 View full text
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Baghdad Science Journal

Abstract: The primitive streak and notochord and previously the anterior marginal crescent (AMC), anterior visceral endoderm (AVE) and the anterior hypoblast (AHB) are embryonic entities which identify main body axes and thus establish body plan in the early stages of embryonic development. All of the anterior pre-gastrulation differentiation structures are addressed terminology as anterior pre-gastrulation differentiation (APD). These structures are defined morphologically and are called in mouse (AVE), in rabbit (AMC)…

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