Tag: regulation of breathing

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Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

Name the respiratory organ which is known as voice box. 

  1. Pharynx

  2. Vocal cords

  3. Trachea

  4. Larynx
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The larynx is known as voice box or sound producing organ. A pair of membranous folds called vocal cords, stretch across the laryngeal cavity. In normal condition, the vocal cords lie apart so that the glottis remains widely open to allow free passage of respiratory air. For sound production, vocal cords come close together, they vibrate when air rushes out through glottis and produce voice.