What is the function of the intercostal muscles and lungs?

Question

(In a human body) Thanks

Answer 1

Actually it helps human lungs to breathe in and out. It main function is to pull the ribcage as a result the volume of the chest increses while we breathe in. And relaxes the ribcage while we breathe out.THANX

Answer 2

The ribcage muscles, acting

alone during inspiration, reduce the pressure in both the

pleural and abdominal cavities, pull in the abdominal

wall and expand the ribs. The abdominal muscles, acting

alone in expiration, increase the pressures in both cavities


.