Q148 / 160 · JIPMER 2004 · Zoology

The vital capacity of lungs is equal to

  • Correct answer
    A
    4600 ml
  • B
    5000 ml
  • C
    6100 ml
  • D
    7000 ml

Solution

The vital capacity is the maximum amount of air that can be expelled from lungs by forced exhalation after a forced inhalation. It is equal to the sum of tidal volume (TV), inspiratory reserve volume (IRV) and expiratory reserve volume (ERV). $\begin{aligned} \mathrm{VC} & =\mathrm{TV}+\mathrm{IRV}+\mathrm{ERV} \\ & =500+3000+1100 \\ & =4600 \mathrm{ml}\end{aligned}$

Hence, the correct answer is option: 'A'.

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