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NEET 2020
Exam
NEET
Year
2020
Subject
Zoology
Chapter
Breathing and Exchange of Gases

NEET 2020 · Zoology · Breathing and Exchange of Gases

The Total Lung Capacity ( TLC ) is the total volume of air...

The Total Lung Capacity(TLC)( TLC ) is the total volume of air accomodated in the lungs at the end of a forced inspiration. This includes:

Options

  1. A

    RV;ICRV; IC (Inspiratory Capacity); ECEC (Expiratory Capacity); and ERVERV

  2. BRV;ERV;ICRV; ERV; IC and ECEC
  3. CRV;ERV;VCRV; ERV; VC (Vital Capacity)andFRCand FRC (Functional Residual Capacity)
  4. DRVRV (Residual Volume); ERVERV (Expiratory Reserve Volume); TVTV (Tidal Volume); and IRVIRV (Inspiratory Reserve Volume)

Correct answer

D. RVRV (Residual Volume); ERVERV (Expiratory Reserve Volume); TVTV (Tidal Volume); and IRVIRV (Inspiratory Reserve Volume)

Step-by-step solution

Total Lung Capacity (TLC)( TLC ): Total volume of air accommodated in the lungs at the end of a forced inspiration is called TLCTLC. Mathematically, it can be represented as:

TLC=RV+VCTLC = RV + VC,

But, VC=TV+ERV+IRVVC = TV + ERV + IRV,

Therefore, TLC=RV+TV+ERV+IRVTLC = RV + TV + ERV + IRV

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