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A person breathing normally at rest, takes in and expels approximately half a litre of air during each respiratory cycle. This is called
- a)inspiratory reserve volume
- b)tidal volume
- c)expiratory reserve volume
- d)vital capacity
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
A person breathing normally at rest, takes in and expels approximately...
The volume of air inspired or expired during normal breath is called tidal volume. It is about 500mL of air in average young adult man.
Most Upvoted Answer
A person breathing normally at rest, takes in and expels approximately...
Explanation:
The correct answer is option 'B', tidal volume.
Tidal volume:
Tidal volume refers to the amount of air that is inhaled and exhaled during a normal breath at rest. It is the volume of air that moves in and out of the lungs with each respiratory cycle. In other words, it is the amount of air that is exchanged during normal breathing.
Other options:
Let's briefly explain the other options to better understand why they are not the correct answer.
Inspiratory reserve volume:
Inspiratory reserve volume (IRV) refers to the additional volume of air that can be inhaled forcibly after a normal inhalation. It is the maximum amount of air that can be inhaled after a normal tidal volume inhalation. Since the question specifies normal breathing at rest, it is not the correct answer.
Expiratory reserve volume:
Expiratory reserve volume (ERV) refers to the additional volume of air that can be exhaled forcibly after a normal exhalation. It is the maximum amount of air that can be exhaled after a normal tidal volume exhalation. Again, since the question specifies normal breathing at rest, it is not the correct answer.
Vital capacity:
Vital capacity is the maximum volume of air that can be exhaled forcefully after a maximum inhalation. It is the sum of tidal volume, inspiratory reserve volume, and expiratory reserve volume. Since the question specifies normal breathing at rest and asks for the amount of air exchanged during each respiratory cycle, vital capacity is not the correct answer.
Conclusion:
In conclusion, the correct answer is option 'B', tidal volume, as it refers to the amount of air exchanged during each respiratory cycle during normal breathing at rest.
The correct answer is option 'B', tidal volume.
Tidal volume:
Tidal volume refers to the amount of air that is inhaled and exhaled during a normal breath at rest. It is the volume of air that moves in and out of the lungs with each respiratory cycle. In other words, it is the amount of air that is exchanged during normal breathing.
Other options:
Let's briefly explain the other options to better understand why they are not the correct answer.
Inspiratory reserve volume:
Inspiratory reserve volume (IRV) refers to the additional volume of air that can be inhaled forcibly after a normal inhalation. It is the maximum amount of air that can be inhaled after a normal tidal volume inhalation. Since the question specifies normal breathing at rest, it is not the correct answer.
Expiratory reserve volume:
Expiratory reserve volume (ERV) refers to the additional volume of air that can be exhaled forcibly after a normal exhalation. It is the maximum amount of air that can be exhaled after a normal tidal volume exhalation. Again, since the question specifies normal breathing at rest, it is not the correct answer.
Vital capacity:
Vital capacity is the maximum volume of air that can be exhaled forcefully after a maximum inhalation. It is the sum of tidal volume, inspiratory reserve volume, and expiratory reserve volume. Since the question specifies normal breathing at rest and asks for the amount of air exchanged during each respiratory cycle, vital capacity is not the correct answer.
Conclusion:
In conclusion, the correct answer is option 'B', tidal volume, as it refers to the amount of air exchanged during each respiratory cycle during normal breathing at rest.
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A person breathing normally at rest, takes in and expels approximately half a litre of air during each respiratory cycle. This is calleda)inspiratory reserve volumeb)tidal volumec)expiratory reserve volumed)vital capacityCorrect answer is option 'B'. Can you explain this answer?
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