To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Recording S3Heartbeat in a dissected 3rd-instar larvae in real time. EGTA added shortly after the recording starts. Recording speed: 200 fps. Playback speed: 200 fps. Formation and function of intracardiac valve cells in the Drosophila heart Kay Lammers, Bettina Abeln, Mirko Hüsken, Christine Lehmacher, Olympia Ekaterini Psathaki, Esther Alcorta, Heiko Meyer, and Achim Paululat Journal of Experimental Biology 2017. 220:1852-1863; doi: 10.1242/jeb.156265 Download Original Video