gracekneebone579 gracekneebone579
  • 07-02-2024
  • Biology
contestada

A person is breathing under normal physiological conditions. A negative pressure in the pleural cavity is created during inspiration.
What creates this pressure?
1) Contraction of the diaphragm
2) Contraction of the intercostal muscles
3) Expansion of the lungs
4) Relaxation of the diaphragm

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