168k views
0 votes
The process of causing air to flow in or out of the chest by expansion and contraction of the chest muscles

The process of causing air to flow in or out of the chest by expansion and contraction-example-1
User Brandon K
by
5.2k points

1 Answer

4 votes

Answer:

Breathing

Step-by-step explanation:

User Humera
by
5.2k points