Question

What happens when you inhale?

A. The diaphragm expands and thoracic volume decreases.

B. The diaphragm contracts and thoracic volume decreases.

C. The diaphragm expands and thoracic volume increases.

D. The diaphragm contracts and thoracic volume increases.

Answer 1

When a human inhales the diaphragm contracts and the thoracic volume increases. This will make the correct answer D.