Expiration is the result of

Forceful expiration results from a forceful contraction of diaphragm.

A: Normal expiration during quiet breathing, unlike inspiration, is a passive process because on muscular contractions are involved. R: Normal expiration results from the elastic recoil of the chest wall and lungs.

A: Normal expiration during quiet breathing, unlike inspiration, is a passive process because on muscular contractions are involved. R: Normal expiration results from the elastic recoil of the chest wall and lungs.

Expiration involves

Expiration involves

Expiration occurs when

Expiration occurs when

Does the expiration rate increase or decrease after exercises?

Expiration occurs due to

Expiration occurs due to