Answer: Vocal folds
Step-by-step explanation:
The vocal folds also known as true cords are folds of the tissues in the throat which aids in producing sound through vocalization.
The pitch of sound is affected by the size of vocal cords. The vocal cords closes when a person is speaking vocal cords are closed and when the person is not speaking.
This structure help in producing the sound by supporting the larynx and cartilage around it.