Vital capacity is

IC + ERV

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ERV + IRV

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TV + IRV

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RV + ERV

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Solution

The correct option is A
IC + ERV

Vital capacity is maximum vol. of air a person can breathe in after a forceful expiration.

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Similar questions

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)

Distinguish between:

(a) IRV and ERV

(b) Inspiratory capacity and Expiratory capacity

Complete the following blanks, regarding lung volumes and capacities.
i. First lung capacity (FRC) $⟶$ ERV+RV= ________.
ii. Inspiratory capacity (IC) $⟶$ TV+IRV= ________.
iii. Vital capacity (VC) $⟶$ IC+ERV= ________.
iv. Total lung capacity $⟶$ RV+VC= ________.

From the following relationships between respiratory volume and capacities, 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)

Codes

(a) (i) Incorrect, (ii) incorrect, (iii) incorrect, (iv) Correct

(b) (i) Incorrect, (ii) Correct, (iii) incorrect, (iv) Correct

(d) (i) Correct, (ii) Incorrect, (iii) Correct, (iv) Incorrect

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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Vital capacity is

The correct option is A IC + ERV Vital capacity is maximum vol. of air a person can breathe in after a forceful expiration.

The correct option is A
IC + ERV

Vital capacity is maximum vol. of air a person can breathe in after a forceful expiration.