Question

If a person forcibly exhaled and then relaxes but does not deliberately inhale, air is taken into the lungs. Suggest a reason to explain this phenomenon.

Answer 1

The lungs have gotten used to their size and shape, and they are comfortable this way. When a person forcibly exhales, it constricts the lungs. When a person relaxes, the lungs return to their standard shape as they took in air. The only ventilation is the trachea, and it forces air in.

The vaccum effect.

Answer 2

It is a vacuum effect. The lungs have gotten used to their size and shape, and they are comfortable this way. When a person forcibly exhales, it constricts the lungs. When a person relaxes, the lungs return to their normal shape as they took in air. The only ventilation is the trachea, and it forces air in.