True ribs are the first seven pairs of ribs in the human ribcage. They are called "true" because they connect directly to the sternum (breastbone) via costal cartilage. This direct attachment provides stability and support to the upper body. Each true rib consists of a bony structure that curves around the chest, protecting vital organs such as the heart and lungs. Unlike false ribs, which do not connect directly to the sternum, true ribs play a crucial role in the respiratory system by allowing the chest to expand and contract during breathing.