Biology, asked by Aruvi2093, 1 year ago

While beeathing which part contracts and expands first?

Answers

Answered by Anonymous
0
Diaphragm............

I THINK IT'S HELP YOU
Answered by Anonymous
13
While breathing your diaphragm contracts and move downward. This increases the space in your chest cavity, into which your lungs expand.

Hope it helps : )
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