Question

What happens to the diaphragm when a person Breaths in or in hales

Answer 1

Answer:

Upon inhalation,

-the diaphragm contracts and flattens

-the chest cavity enlarges

-contraction creates a vacuum, which pulls air into the lungs.

Upon exhalation,

-the diaphragm relaxes

-returns to its domelike shape

-air is forced out of the lungs.