Question

During inhalation, which parts of the lung structure would you expect to expand the most​

Answer 1

Answer:

During inhalation – the muscles contract:

Contraction of the rib muscles – causes [the ribs] to rise, thus increasing the chest volume. The chest cavity expands, thus reducing air pressure and causing air to be passively drawn into the lungs.

Answer 2

Answer:

This pressure gradient between the atmosphere and the thoracic cavity allows air to rush into the lungs; inhalation occurs. The resulting increase in volume is largely attributed to an increase in alveolar space because the bronchioles and bronchi are stiff structures that do not change in size.