Inhalation vs Exhalation — Difference (with Table)
Inhalation vs Exhalation compared side by side — a 7-row comparison table and 4 key points. Class 9-12 Biology, free and no sign-up.
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TL;DR: Inhalation vs Exhalation compared side by side — a 7-row comparison table and 4 key points. Class 9-12 Biology, free and no sign-up.
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The main difference between Inhalation and Exhalation: Inhalation is breathing in oxygen-rich air, while exhalation is breathing out carbon dioxide-rich air. These respiratory processes are fundamental to the r
Inhalation vs Exhalation — Comparison Table
| Basis | Inhalation | Exhalation |
|---|---|---|
| Direction | Air flows into lungs | Air flows out of lungs |
| Diaphragm movement | Diaphragm contracts and moves down | Diaphragm relaxes and moves up |
| Chest cavity | Expands in size | Decreases in size |
| Lung volume | Increases | Decreases |
| Pressure change | Pressure decreases, air flows in | Pressure increases, air flows out |
| Process type | Active process (muscles contract) | Mostly passive (muscles relax) |
| Gas exchange | Oxygen enters blood | Carbon dioxide leaves blood |
Key Points
- Inhalation brings oxygen in; exhalation removes carbon dioxide
- Inhalation is active; quiet exhalation is passive
- Diaphragm is the main muscle for both processes
- Normal breathing rate is 12-20 breaths per minute in adults