Question

How much amount of air can be inspired or expired during normal breathing?

• A. 0.5$l$
• B. 25$l$
• C. 1.5$l$
• D. 5.5$l$

Answer 1

The correct option is A 0.5$l$

The tidal volume is the volume of air inspired or expired with each normal breath. It amounts to about 500 millilitres (0.5 litres) in the adult male. Lung capacity depends on various factors such as age, sex, weight and activity. Females have 20-25% lower capacity than male.