To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1. 3D reconstruction of valve cells and valvosome from 700nm semi-thin sections. Formation and function of a highly specialised type of organelle in cardiac valve cells Christian Meyer, Leonhard Breitsprecher, Laetitia Bataille, Alain J. M. Vincent, Maik Drechsler, Heiko Meyer, and Achim Paululat Development 2022. 149:None-None; doi: 10.1242/dev.200701 Download Original Video