Read the following and choose the option with all incorrect statements.

(i) Inspiratory Reserve Volume averages 2500-3000 ml whereas RV averages 1000-1100.

(ii) Volume of air remaining in lungs after normal expiration is called residual volume.

(iii) I.C = T.V + I.R.V

(iv) Functional Residual capacity is total volume of air that will remain in lungs after normal expiration.

(v) Vital capacity is the maximum volume of air a person can breath out after a forced inspiration. This includes ERV, T.Vand IRV.

(vi) Alveoli are the primary sites of exchange of gases.

(vii) Expiratory capacity is total volume of air a person can expire after normal inspiration.

(viii) Pressure contributed by an individual gas in a mixture of gases is called partial pressure and is represented as pO 2 for oxygen and pCO 2 for CO 2 .

(ix) pO 2 of deoxygenated blood is 40 mmHg and pCO 2 in oxygenated blood is 45 mmHg.

(x) The solubility of CO 2 is 20-25 times higher than that of O 2 in blood.

Choose the correct option given below: