Question

how does the diaphragm help in breathing

Answer 1

Answer:

hi....

Explanation:

when we breathe in, our diaphragm contracts and moves downwards which increases the space in the chest cavity into which our lungs expand. when we breathe out, our diaphragm relaxes which reduces the surface area so our lungs contract and go back to the way they first were.

this is how diaphragm helps in breathing in human beings.

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