Science, asked by qwertghty, 8 months ago

.muscles in ribs help in expiration and inspiration and hence expansion of
8..
lung..
9.
in throat ensure that air passage does not collapse.​

Answers

Answered by saumya2578
1

Answer:

muscles in ribs help in expiration and inspiration and hence expansion of thoracic cavity

in throat ensure that air passage does not collapse

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