Question

What are the lungs to the diaphragm

Answer 1

The lungs are thoracic cavity which is above the diaphragm that separates the thoracic and abdominal cavity.

Answer 2

Breathe in, or 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.