Distinguish between:
(iii) Tidal volume and vital capacity.

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Solution

Tidal volme Vital capacity

Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle . Vital capacity ( VC) is the maximum amount of air a person can expel from the lungs after a maximum inspiration and expiration .

The value for tidal volume is 500 ml . The value for vital capacity is 3500-4500 ml .

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Similar questions

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

(I C) =

(V C) =

(T V) +

(I R V) +

(E R V)

(R V) =

(V C) -

(I R V)

(T V) =

(I C) -

(I R V)

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Tidal volme	Vital capacity
Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle .	Vital capacity ( VC) is the maximum amount of air a person can expel from the lungs after a maximum inspiration and expiration .
The value for tidal volume is 500 ml .	The value for vital capacity is 3500-4500 ml .