Crud Înapoi, înapoi, înapoi parte emulează mezoderm sac vitelin reprezentant întâlni nu vad
Origin and function of the yolk sac in primate embryogenesis | Nature Communications
The human umbilical vesicle ('yolk sac') and pronephros—Are they vestigial?
Inner Cell Mass
The Yolk Sac of the Equine Placenta. Its Remnant and Potential Problems - ScienceDirect
Embryonic Development | Anatomy and Physiology II
PLACENTATION AND GESTATION. Endoderm forms the yolk sac inside the trophoblast eventually the yolk sac regresses into the gut Mesoderm forms double. - ppt download
Sacul Yolk, semn de sarcina la prima ecografie | Copilul.ro