If atmospheric pressure is 760 mm Hg, what would you expect the pressure inside the lungs to be during a forceful expiration?
A)0 mm Hg
B)750 mm Hg
C)756 mm Hg
D)760 mm Hg
E)764 mm Hg

Question

If atmospheric pressure is 760 mm Hg, what would you expect the pressure inside the lungs to be during a forceful expiration? ​
A)0 mm Hg
B)750 mm Hg
C)756 mm Hg
D)760 mm Hg
E)764 mm Hg ​

Quizplus · Accepted Answer

During a forceful expiration, the pressure inside the lungs must be higher than the atmospheric pressure to push air out. Therefore, if atmospheric pressure is 760 mm Hg, the pressure inside the lungs would be slightly higher, making 764 mm Hg the correct choice.

If Atmospheric Pressure Is 760 Mm Hg, What Would You