Multiple choice

When an individual is at rest, the adequate ventilation is maintained through

  1. external intercostal muscle

  2. internal intercostal muscles

  3. intercostal space

  4. diaphragm
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The diaphragm alone can maintain adequate ventilation at rest. The muscles aid the flattened diaphragm in generating sufficient inspiratory pressure to maintain adequate ventilation, both when awake and during rest.

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