Fig. 5

3D model to show the interaction between representative cumulus granulosa cells (cGCs). A,B SEM images of different contact sites between two cGCs. C,D Zoom-in views of a and b respectively. E,F Reconstructed images to show the membrane contact according to c and d respectively. G,H Reconstructed 3D model to show the parallel membranes with narrow gaps. I multiple gap junctions between two cGCs. J concentrated gap junctions seen at a small area where three cells met