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Mechanism of Breathing

Differentiate...

Question

Differentiate between.
Tidal volume and residual volume

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Solution

Tidal volume is the amount of air-inspired or expired with each breathing cycle by a resting person.
The residual volume is the volume of air left in lungs and respiratory passage after even the severest expiratory effort.

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Q. Differentiate between Tidal volume and Residual volume (volume of air).

Q. Arrange the following in order of increasing volume.

1

2

. Residual volume

3

. Expiratory reserve volume

4

. Vital capacity

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)

Define the following terms?

(a) Tidal volume

(b) Residual volume

(c) Asthma

Q. If expiratory reserve volume is 1100 ml residual volume is 1200 ml and tidal volume is 500 ml, what shall be the functional residual capacity?

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