What does “Mechanism of breathing” actually mean in Breathing & Exchange of Gases, and why does it matter for NEET?
the diaphragm and intercostal muscles change chest volume to draw air in and push it out.
In simple words: the diaphragm and intercostal muscles change chest volume to draw air in and push it out. Getting Mechanism of breathing clear matters because NEET questions on Breathing & Exchange of Gases usually test this idea directly, not just a formula you memorised.
Key point
Mechanism of breathing
Common mistake
thinking the lungs themselves have muscles that pump air.
Memory tip
lungs are passive; the diaphragm does the pumping.
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