Question

why is the size of chest cavity increases during inhalation ​

Answer 1

Explanation:

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.

Answer 2

Answer:

When you breathe in, or inhale air..Your diaphragrm contracts and move downward..This increases the space in your chest cavity and your lung expand into..The muscles between your ribs and also help enlarge the chest cavity.They contract tonpull your rib cage both upward and outward when you inhale..

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