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Day 1: The Journey Begins

The Embryo Illustrated

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Embryo Drawing This is an illustration of a 24-hour chick embryo lying on top of its yolk. The various structures and layers present at this time are color-coded. The neural tube, derived from ectoderm, is blue. The somites and mesodermal layer from which they are derived are red. The gut, derived from endoderm, is yellow.



Text and graphic by Janet Sinn-Hanlon

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