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Day 2: The Heart of the Matter

A 33 Hour Chick Embryo

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33 Hour Embryo At 33 hours the upper half of the body has risen considerably above the blastoderm. The part of the brain that will contribute to the formation of the eyes, the optic vessicles, bulge out to the sides. The ventricle of the straight, tubular heart is just beginning to curve to the right and the vitelline vein which carries food from the yolk to the embryo is clearly seen.



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EGG BIOLOGICAL IMAGING DATABASE EGG MATH EMBRYOLOGY NIH Image HOME Copyright (C) 1998 University of Illinois at Urbana-Champaign