Multiple choice

Which of the following is regarded as the balance point between the inward elastic recoil of the lungs and the outward elastic recoil of the chest wall in mammals?

  1. Total lung capacity

  2. Vital capacity

  3. Inspiratory capacity

  4. Functional residual capacity

  5. Expiratory reserve volume

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is the volume of gas remaining in the lungs at the end of a normal tidal expiration. It is the balance point between the inward elastic recoil of the lungs and the outward elastic recoil of the chest wall.