The developing oesophagus (yellow), stomach (orange) and intestine (red) have been manually defined at 6 embryonic stages.
The pancreas (blue) has also been defined at CS13, CS15 and CS20.

Interactive models, shown from the frontal view, are on the left with a movie of the same model on the right.
Click and hold to manipulate the interactive models. The mouse wheel can be used to zoom in and out.