The voice box; where vocal cords are located; assists in singing/phonation.

The voice box; where vocal cords are located; assists in singing/phonation.

• A. Nasal Cavity
• B. Pharynx
• C. Oral Cavity
• D. Larynx

Answer: (D)

The part that houses the vocal cords and drives voice production is the larynx, the voice box. It sits at the top of the trachea and contains the vocal folds, whose vibration as air from the lungs passes through creates sound. By adjusting tension and length of the cords with intrinsic laryngeal muscles, it changes pitch and quality, which is essential for singing. The larynx also protects the airway during swallowing and participates in coughing. Other structures like the nasal cavity, pharynx, and oral cavity contribute to the resonance and shaping of sound, but the actual source of phonation—the vibrating vocal cords—is the larynx.

The part that houses the vocal cords and drives voice production is the larynx, the voice box. It sits at the top of the trachea and contains the vocal folds, whose vibration as air from the lungs passes through creates sound. By adjusting tension and length of the cords with intrinsic laryngeal muscles, it changes pitch and quality, which is essential for singing. The larynx also protects the airway during swallowing and participates in coughing. Other structures like the nasal cavity, pharynx, and oral cavity contribute to the resonance and shaping of sound, but the actual source of phonation—the vibrating vocal cords—is the larynx.