Day 3: Say Cheese!

The Egg Yolk

The embryo is the question mark shape in the center of the image. It has grown considerably since yesterday and the anterior half of its body is curved even more. The heart, located inside the anterior curve of the body is much larger and more developed than in yesterday's photograph. The omphalmomesenteric veins, extending from either side of the embryo to connect with the vitelline vessels, have grown and branched.

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