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Physiology of Respiration

what is resid...

Question

what is residual and tidal volume?

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Solution

Residual volume is the volume of air that remains in the lung after maximum expiration.
Tidal volume is the volume of air enters and exits during normal inspiration and expiration.

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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?

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

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. Tidal volume and expiratory reserve volume of an athlete is 500 mL and 1000 mL respectively. What will be his expiratory capacity if the residual volume is 1200 mL?

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