Match the items given in column I with those in column II and select the correct option given below:

Column I	Column II
a. Tidal volume	(i) 2500 - 3000 mL
b. Inspiratory reserve volume	(ii) 1100 - 1200 mL
c. Expiratory reserve volume	(iii) 500 - 550 mL
d. Residual volume	(iv) 1000 - 1100 mL

The correct option is B a(iii)., b( i)., c( iv) ., d( ii)
The volume of air involved in breathing movements can be estimated approximately by using a spirometer.

Given below are respiratory volumes:

• TIDAL VOLUME (TV): Volume of air inspired or expired during a normal respiration is called tidal volume. In a healthy man, the tidal volume is approximately 500 - 550 mL.
• INSPIRATORY RESERVE VOLUME (IRV): It is the additional volume of air that can be inhaled by a forceful inspiration. Its value is in the range of 2500 mL - 3000 mL.
• EXPIRATORY RESERVE VOLUME (ERV): It is the additional volume of air that can be exhaled by a forceful expiration. Its value is in the range of 1000 mL to 1100 mL.
• RESIDUAL VOLUME (RV): It is the volume of air that is left in the lungs even after a forceful expiration. It is about 1100 mL - 1200 mL.