Rigid scope exam

Lecture on High Definition Laryngology given at the 2016 European Laryngological Society Meeting in Genoa, Italy. 

high and a low pitch

One may compare this person at a high and a low pitch, demonstrating the elongation of the vocal cords that takes place to raise pitch by contracting the Cricothyroid muscles

phonation at a high pitch

During a rigid scope exam, this is the position of the vocal folds at the onset of phonation at a high pitch.