Which muscles contract in our chest when we inhale?

The muscles that contract in our chest when we inhale are the intercostal muscles. These muscles are located between the ribs in the rib cage and are responsible for expanding the chest cavity during inhalation. When we inhale, the intercostal muscles contract, pulling the rib cage upwards and outwards, which increases the volume of the chest cavity and allows the lungs to expand and fill with air.