Development Animation - Gastrointestinal Tract Growth
<wikiflv width="168" height="320" autostart="true" position="left">Gastrointestinal tract growth 01.flv|File:Gastrointestinal tract growth 01 icon.jpg</wikiflv>
This animation shows the early development of the gastrointestinal tract tube.
Note that as the epithelial wall proliferates the early tract lumen is transiently lost.
Legend endoderm of gastrointestinal tract