During inspiration, the diaphragm

relaxes

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contracts

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expands

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gets folded

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Solution

The correct option is B contracts
During inspiration or breathing in the air the diaphragm contracts and the volume of the thoracic cavity increases due to its downward movement.
So, the correct option is 'contracts'.

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Similar questions

During inspiration air enters the lungs. Which of the following phenomena is observed during inspiration?

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