Question

What is the role of diaphragm and intercoastal muscles in the process of breathing in?

Answer 1

Answer:

When you breathe in, or inhale, yourdiaphragm contracts (tightens) 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. They contract to pull your rib cage both upward and outward when you inhale.