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NEST2022BiologyBreathing and Exchange of Gases

In humans, breathing involves cycles of inhalation and exhalation. The event(s) that occur(s) during inhalation is/are:

Options

  1. Arelaxation of the diaphragm.
  2. Brelaxation of the external intercostal muscles.
  3. Cexpansion of the thoracic cavity.
  4. Ddecrease in the intra-pulmonary pressure.

Correct answer

D. decrease in the intra-pulmonary pressure.

Step-by-step solution

No solution available.

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