DescriptionGray26.svg English: Diagram showing later stage of allantoic development with commencing constriction of the yolk-sac. 1 Heart 2 Amniotic cavity
DescriptionGray26.png Diagram showing later stage of allantoic development with commencing constriction of the yolk-sac. Plate InfoField 26 Date before
DescriptionGray26 Ar.png العربية: رسم تخطيطي يوضح المرحلة اللاحقة من تطور السوائل مع بدء انقباض الكيس المحي. Date 11 July 2020 Source Re-drawn from File:Gray26.png
