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Q What is the formula for vital capacity?

ID: #10021 Respiratory system 143 views
Question Info
#10021Q ID
EasyDifficulty
Respiratory systemTopic
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  • A ERV + RV ✔ ✖
  • B IRV + TV ✔ ✖
  • C IRV + TV + ERV + RV ✔ ✖
  • D IRV + ERV + TV ✔ ✖
Correct Answer: Option D

Explanation

Vital capacity is a lung function measurement that represents the maximum amount of air a person can forcefully exhale after taking the deepest breath possible. It is calculated by adding the inspiratory reserve volume (IRV) to the expiratory reserve volume (ERV) and the tidal volume (TV). Therefore, the correct option is D) IRV + ERV + TV. A greater vital capacity means that a person has better lung function and can exhale more air from the lungs.

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