The yolk sac functions as nourishment for the developing ... Having a gestational sac doesn't say much about the health of your pregnancy, nor does it indicate whether an embryo is present or ...

One patient had a molar pregnancy and one was lost to follow up. This study used a discriminatory zone cut off of 3,000 for visualization of an IUP based on presence of fetal pole or yolk sac.

From embryo to newborn baby, here’s a step-by-step guide to the fascinating formation of your baby’s digestive system.