PATHOLOGY MCQ
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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amount of air inspired and expired with each normal breath during rest or exercise.
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the maximum volume that can be exhaled.
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the delivery of oxygen from the lungs to the bloodstream.
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the maximum volume that can be inhaled.
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Detailed explanation-1: -Expiratory Reserve Volume: The additional gas that can be exhaled beyond FRC to reach residual volume. Residual Volume: The minimum lung volume possible. This is the gas that remains in the lung after all exhalable gas has been removed. Total Lung Capacity: The total volume present in the lung.
Detailed explanation-2: -Expiratory reserve volume is the maximal volume of air that can be exhaled from the end-expiratory position. This is the difference between the volume of air left in the lung at the conclusion of normal expiration versus at the conclusion of maximal expiration. Expiratory reserve volume is about 1.1 litres or 1100 ml.
Detailed explanation-3: -Following maximal inspiration, the volume of air that leaves the lungs during a maximal force expiration is known as the vital capacity (VC). VC is composed of the tidal volume, expiratory reserve volume (ERV), and inspiratory reserve volume (IRV).