Multiple choice Breathing involves the movement of the Nose and rib cage Lungs and rib cage Diaphragm and lungs Diaphragm and rib cage Reveal answer Fill a bubble to check yourself D Correct answer Explanation During inhalation, ribs move up and outwards and diaphragm moves down. This movement increases space in our chest cavity and air rushes into the lungs. During exhalation, ribs move down and inwards, while diaphragm moves up to its former position.