I searched Twitter for #voice #speech and came up with this great link to a PDF of a slideshow by Berkeley’s Keith Johnson for his linguistics 110 course. It features images of anatomical structures involved in breathing and voicing (aka “phonation”) that nicely shows how the intercostal muscles work during breathing and the intrinsic muscles of the larynx work during sounding. Of course what the slides leave out is the expert storytelling a lecturer does to accompany such slides. I have a website dedicated to anatomy and physiology of the voice which you can (dare I say should?) check out at the Journey of the Voice. Enjoy!