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NEETBiologyBreathing & Exchange of GasesClass 11

What is the difference between inspiration and expiration?

In inspiration the diaphragm contracts and chest volume rises to pull air in; in expiration it relaxes and air is pushed out.

In inspiration the diaphragm contracts and chest volume rises to pull air in; in expiration it relaxes and air is pushed out. A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.

Key point

inspiration vs expiration

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