A healthy adult takes a normal inspiration. Following this, he forcibly exhales as much air as possible. If the total volume of air exhaled by him is 1600 mL and his tidal volume is 500 mL, the remaining 1100 mL of the exhaled air represent

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A healthy adult takes a normal inspiration. Following this, he forcibly exhales as much air as possible. If the total volume of air exhaled by him is 1600 mL and his tidal volume is 500 mL, the remaining 1100 mL of the exhaled air represents his :

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Correct answer: C. Expiratory Reserve Volume

When a person takes a normal inspiration, the volume of air in the lungs increases by the Tidal Volume (TV). Upon subsequent forced exhalation, the person first exhales the Tidal Volume (to return to the normal resting expiratory level) and then forcibly exhales the Expiratory Reserve Volume (ERV). The total volume of air a person can expire after a normal inspiration is called the Expiratory Capacity (EC). Given: Total exhaled volume (EC) = 1600 mL Tidal Volume (TV) = 500 mL Since EC = TV + ERV, 1600 mL = 500 mL +

A healthy adult takes a normal inspiration. Following this, he forcibly exhales as much air as possible. If the total volume of air exhaled by him is 1600 mL and his tidal volume is 500 mL, the remaining 1100 mL of the exhaled air represents his :

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