Question

The size of the chest cavity increases during inhalation.

• A. True
• B. False

Answer 1

The correct option is A True

When you inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. So when we take in air during inhalation, the size of the chest cavity increases.