Step 1 : Introduction to the question "6. What is contained within the larynx that enables human beings to vocalize?"
...1. Trachea 2. Adam's apple 3. Hyoid Bone 4. Vocal cords/folds The vocal cords, or folds, vibrate as air passes over them causing an audible vocalization. The tension of the cords is what gives us our pitch; taut produces a high pitch, while less elastic gives a lower one.
