Biology · Human Respiratory System
Which muscle separates the thoracic cavity from the abdominal cavity and plays a major role in breathing?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Pectoralis major
- 2Cardiac muscle
- 3Diaphragm✓
- 4Intercostal muscle
Correct answer
Diaphragm
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