The voice box has a number of cartilages which relate to producing and modifying sound. complete the following questions using either epiglottis, thyroid cartilage, cricoid cartilage, arytenoid cartilage, corniculate cartilage, cuneiform cartilage:
a. forms foundation for other phonation cartilages to anchor to
b. increases pitch of vocal folds by stretching the folds (give cartilage name and what direction it moves)
c. decreases the pitch of the vocal folds b relaxing the folds (give cartilage name and what direction it moves)
d. spreads the vocal folds open so that you may breathe more easily (give cartilage name and whether rotate lateral or rotate medial)
e. brings the vocal folds together so that passing air may vibrate them (give cartilage name and whether rotate lateral or rotate medial)