In humans, the total capacity inside the lungs is about:
Correct answer: C. 5.5 litres
- A. 3.5 litres
- B. 2.5 litres
- C. 5.5 litres
- D. 8 litres
Explanation
The total lung capacity means the maximum amount of gas that a lung can hold. It is approximately 5-6 liters.
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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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