True ribs are the first seven pairs of ribs in the human ribcage. They are directly attached to the sternum (breastbone) via costal cartilage, providing a strong and flexible connection. This attachment helps protect vital organs in the thoracic cavity, such as the heart and lungs. Each true rib consists of a bony structure that curves around the body, contributing to the overall shape of the chest. Unlike false ribs, which do not connect directly to the sternum, true ribs play a crucial role in respiratory mechanics by allowing the ribcage to expand and contract during breathing.