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      • abnormal extraembryonic tissue morphology

    • abnormal visceral yolk sac morphology   MP:0001718   (0)
    Definition: any structural anomaly of the extraembryonic tissue membrane, formed from the visceral endoderm and the extraembryonic mesoderm, which is located ventral to the embryonic disc and is connected to the presumptive midgut of the embryo; the yolk that it contains is the site of embryonic hematopoiesis and vitelline circulation is involved in early embryonic circulation; it is the origin of the primordial germ cells [ISBN10:9780123364258, ISBN:0-683-40008-8, PMID:21123814];   [MGI annotations / genotypes]
      (No descendants that are mapped to MPD data)



    VT:0001718 (yolk sac morphology trait) is numbered similarly to MP:0001718 but is over in the VT ontology (semantics may or may not be similar).

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