A person takes a deep breath and wants to know if the air outside their lungs is stronger than the air outside. The air in their chest, when they have a large chest, will be, compared to outside the body,
higher lower
A B
During inhalation, because the chest volume is larger, the air pressure inside the lungs is lower than the air pressure outside.
air pressure inside
larger
lower
MORE
LESS
chest volume
lower
higher
air
air
air