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An increase in air pressure in the lungs is due to the

An increase in air pressure in the lungs is due to the
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Increase in the volume of the thoracic cavity
  • B Upward movement of he ribs
  • C Relaxation of the diaphragm
  • D Contraction of the intercostal musles
Correct Answer: Option C
Explanation:

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