Range of normal total lung capacity in humans is:
Correct answer: A. 5-6 liter.
- A. 5-6 liter.
- B. 8-9 liter
- C. 10-11 liter
- D. 12-13 liter
Explanation
The normal lung capacity of an average adult human is about 5 to 6 liters. This total lung capacity (TLC) includes various volumes, such as tidal volume, inspiratory reserve volume, expiratory reserve volume, and residual volume. However, individual capacities can vary based on factors like age, gender, and fitness level.
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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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