Biology for IGCSE & O level - Gas Exchange In Humans (Section 2 - No. 30)

The diaphragm contracts, and the rib cage moves upward and outward. Which process is this describing? (Select all that apply)

Inhalation

Exhalation

Gas exchange

Cellular respiration

The increase in volume of the chest cavity during inhalation is caused by the diaphragm and rib cage movements.