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Day 2: The Heart of the Matter

3-D Reconstruction of a 48 Hour Chick Embryo

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3D Reconstruction This image was made by slicing a fixed 48 hour chick embryo in very thin sections from head to toe. The sections were then photographed under the microscope and brought into a computer. Special software was used to restack the slices into a three-dimensional volume, and even make a 3-D movie!

The different layers and organs are colored in the following manner: ectoderm (blue), mesoderm (red), and endoderm (yellow). The blue neural tube becomes the brain and nervous system. Parts of the eye and ear also come from the neural tube. The yellow gut becomes the digestive tract. The heart and blood vessels are derived from mesoderm and are colored red.



3-D reconstruction and text 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