Ianessa, this video has helped me immensely to understand exactly what the epiglottis does during the swallow. I have watched it several times. Not sure if there is audio, I was not able to hear it.
Ianessa, this is just another tribute to your genius at presenting things, in general, and specifically! It is the best explanation of what the epiglottis does during the swallow that I've ever seen. It is important for me to understand this and after just a few replays, it is 100% clear. Well done!