When we _____ air, that is, breathe out air, the _____ muscles relax and move _____. The ribs also move _____ and inwards as its muscles relax. Thus, the space inside the chest cavity _____ and the air pressure _____.
Answers
Answered by
0
Explanation:
When you breathe out, or exhale, your diaphragm and rib muscles relax, reducing the space in the chest cavity. As the chest cavity gets smaller, your lungs deflate, similar to releasing of air from a balloon.
Similar questions