Lung capillary volume is -

Ans. is 'b' i.e., 150 ml o Total capillary blood valume in lung- 104 ml.o Total pulmonary capillary surface area - 70 m2o Volume of blood per alveolus - 4.7 x 10-7 ml.o Capillary surface area per alveolus - 23.4 x l04 cm2o Number of capillary segments - 280 x 109