Question

during breathing cycle what is the advantage of rescidu al volume of air in lungs explain

Answer 1

During expiration we relase gasses in air which we take in inspiration so if residaul volume is not present in lungs..then lungs must be collapse....

Answer 2

Answer:

it saves the lung from collapsing

Explanation:

also the negative intrapleural pressure of pleural membrane keeps the lungs emlarged which may otherwise collapse due to its elastic nature.