Question

movement of vocal cords during speech

Answer 1

The vocal cords, also known as vocal folds, are composed of twin infoldings of mucous membrane stretched horizontally, from back to front, across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation.

Answer 2

during speech vocal cords vibrate, modulating the flow of air being expelled from lungs during phonation