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Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases1 Mark
MCQ
The structures participating in the inhalation are:
  • A
    Diaphragm and internal intercostal muscles
  • ✓
    Diaphragm and external intercostal muscles
  • C
    Abdominal muscles and intercostal muscles
  • D
    All of the above
✓

Answer

Correct option: B.
Diaphragm and external intercostal muscles

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