Click on an image to start the animation.

Animation 1: Oscillating tissue block centered on the implantation site. The initial surface view fades to show the new layer of endometrial epithelium coverering the implanted conceptus. The cut end of the trophoblast is visible at the front of the tissue block.	Animation 2: Vertical rotation of the chorionic cavity. The primary umbilical vesicle and the embryonic disc can be seen within the cavity.
Animation 3: Vertical rotation of the embryonic disc

These 3D animations were made from the WinSurf reconstructions. To enable users to better study the reconstructions, we are also providing the original WinSurf files together with a WinSurf Viewer. This viewer will allow users to open WinSurf data files and view reconstructions with all the display options of the full reconstruction program. Models can be rotated about all three orthogonal axes, users can zoom in and out when viewing models and models can be translated. Also, the color and opacity of different objects in the models can be varied.