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Transport of Carbon Dioxide

Total lung ca...

Question

Total lung capacity is equal to:

A

Vital capacity x Tidal volume

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B

Functional residual capacity + Expiratory reserve volume

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C

Anatomical dead space + Alveolar dead space

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D

Residual volume + Vital capacity

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Solution

The correct option is D
Residual volume + Vital capacity

The total lung capacity (TLC), about 6,000 mL, is the maximum amount of air that can fill the lungs (TLC = TV + IRV + ERV + RV).

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Similar questions

Q. Identify the correct and incorrect match about the respiratory volume and capacities and mark the correct answer.
(a) Expiratory capacity = Tidal volume + Residual volume
(b) Vital capacity = Total lung capacity – Residual volume
(c) Inspiratory capacity = Total lung capacity – Functional Residual capacity
(d) Total lung capacity = Vital capacity + Functional Residual capacity

Q. In the following functional human lung studies, identify the total lung capacity

I	Inspiratory Capacity (IC)
II	Functional Residual Capacity (FRC)
III	Vital Capacity (VC)
IV	Inspiratory Reserve Volume (IRV)
V	Residual Volume RV)
VI	Expiratory Reserve Volume (ERV)
VII	Tidal Volume (TV)

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Q. In the following functional human lung studies, identify the total lung capacity.
A) Inspiratory capacity (IC)
B) Functional residual capacity (FRC)
C) Vital capacity (VC)
D) Inspiratory reserve volume (IRV)
E) Residual volume (RV)
F) Expiratory reserve volume (ERV)
G) Tidal volume (TV)
The correct answer is

Q. Mark the correct option:
(i) Inspiratory capacity (IC) = Tidal volume + Residual volume
(ii) Vital capacity (VC) = Tidal volume (TV) + Inspiratory reserve volume (IRV) + Expiratory reserve volume (ERV)
(iii) Residual volume (RV) = Vital capacity (VC) + Inspiratory reserve volume (IRV)
(iv) Tidal volume (TV) = Inspiratory capacity (IC) – Inspiratory reserve volume (IRV)

Q. Explain the terms: Vital capacity of lungs in terms of IRV (Inspiratory Reserve Volume), ERV (Expiratory Reserve Volume), TV (Tidal Volume) and RV (Residual Volume)

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