Embryonic Disc

This a simplified model of the embryonic disc, one of the very early stages of the human embryo.
This model is designed to visualize the conjunction of the mesoderm, the amnion and the yolk sac.
Since this is a simplified model, it is lacking both craniocaudal and ventrolateral flexion and the proportions of everything are kind of off. The yolk sac, amnion and stand are designed to smoothly fit into the Mesoderm (and almost do so).

I, personally, would request to print this thing with support structure, but apart from that the print settings are completely up to your preferences.