Breathing and Exchange of Gases

BiologyClass 11

Understand how the diaphragm and intercostal muscles drive inspiration and expiration through pressure differences. 3-4 NEET questions every year.

Key Topics in this Chapter

DiaphragmIntercostal musclesInspirationExpirationIntrapulmonary pressure

Interactive 3D Labs for this Chapter

Breathing Mechanism

3D

Mechanism of Breathing — Diaphragm, Intercostals & Lung Volume 3D

2-3 NEET questions

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