Phonation Occurs When

Question

Phonation occurs when
A)Vocal folds vibrate in the presence of air flow
B)Vocal folds release mucous
C)The larynx opens and closes
D)The vocal folds vibrate in a vacuum created in the larynx

Accepted Answer

Phonation is the process of generating sound by the vibration of vocal folds. This vibration occurs when the vocal folds are set into motion by air passing through them, causing them to rapidly open and close. Therefore, option A is the correct choice. Option B is incorrect as mucous is not related to phonation, option C is incorrect as it describes the opening and closing of the larynx and not the vibration of the vocal folds, and option D is incorrect as vocal fold vibration requires air flow.