Which group of bones help with breathing?

The rib cage, composed of ribs, the sternum, and the thoracic vertebrae, plays a crucial role in breathing. The ribs expand and contract during inhalation and exhalation, which helps to create changes in pressure within the thoracic cavity, allowing air to flow in and out of the lungs. Additionally, the diaphragm, though not a bone, works in conjunction with the rib cage to facilitate this process.