Question

why do the lungs not collapse after forceful expiration

Answer 1

Those are supported by muscles

Answer 2

*:..｡o○☆ HEYA MATE !☆○o｡..:*

ANSWER :

─━━━━━━⊱✿⊰━━━━━━─

The lungs do not collapse even after forceful expiration as the lungs never become empty.There is always some amount of air left in the lungs which is known as residual volume.

─━━━━━━⊱✿⊰━━━━━━─

∝╬══→HOPE U LIKE IT !!♡