To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 6 Time-lapse of pak-1(ok448); noah-1(RNAi) embryos at a late elongation stage, visualized with LIFEACT::GFP, showing normal muscle twitching and rolling. Time is in hour:minute. The apical ECM preserves embryonic integrity and distributes mechanical stress during morphogenesis Thanh Thi Kim Vuong-Brender, Shashi Kumar Suman, and Michel Labouesse Development 2017. 144:4336-4349; doi: 10.1242/dev.150383 Download Original Video