Question

Ut can contract and expand during the process of breathing

Answer 1

Answer:

IDK.....please recheck your question

Answer 2

Answer:

When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. ... They contract to pull your rib cage both upward and outward when you inhale.... prefer to it child