The primary function of larynx is:
Correct answer: D. Voice production
- A. Humidifying air
- B. Filtering dust
- C. Gaseous exchange
- D. Voice production
Explanation
The larynx houses the vocal cords, and air forced between them makes them vibrate to produce sound, which is why it is called the voice box. Humidifying and filtering the air are done earlier, in the nasal cavity and the ciliated mucous lining of the airways. Gaseous exchange happens only in the alveoli, since no other part of the tract has walls thin enough.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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