Questions: Which term refers to the amount of air inhaled and exhaled during one cycle of quiet breathing? Inspiratory reserve volume Residual volume Tidal volume Expiratory reserve volume

Which term refers to the amount of air inhaled and exhaled during one cycle of quiet breathing? Inspiratory reserve volume Residual volume Tidal volume Expiratory reserve volume
Transcript text: Which term refers to the amount of air inhaled and exhaled during one cycle of quiet breathing? Inspiratory reserve volume Residual volume Tidal volume Expiratory reserve volume
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Solution

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The answer is the third one: Tidal volume.

Explanation for each option:

  1. Inspiratory reserve volume: This is the additional amount of air that can be inhaled after a normal inhalation. It is not the amount of air inhaled and exhaled during a normal breathing cycle.

  2. Residual volume: This is the amount of air remaining in the lungs after a forceful exhalation. It is not involved in the normal cycle of inhalation and exhalation.

  3. Tidal volume: This is the correct term for the amount of air inhaled and exhaled during one cycle of quiet breathing. It represents the normal volume of air displaced between normal inhalation and exhalation when extra effort is not applied.

  4. Expiratory reserve volume: This is the additional amount of air that can be exhaled after a normal exhalation. It does not refer to the normal cycle of breathing.

In summary, tidal volume is the term that refers to the amount of air inhaled and exhaled during one cycle of quiet breathing.

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