Which ribs are considered true ribs?

True ribs, specifically defined in anatomical terms, are the first seven pairs of ribs (ribs 1-7) that are directly attached to the sternum via costal cartilage. This direct attachment distinguishes them from false ribs, which do not connect directly to the sternum. Ribs 1-7 are therefore considered true ribs because their structural connection provides them with the functional role of aiding in the respiratory mechanics effectively.

The anatomical classification is crucial, especially in understanding the overall structure of the rib cage and its protective function for vital organs such as the heart and lungs. Furthermore, knowing these classifications can aid in diagnosing rib-related injuries or conditions, which is particularly relevant in fields such as medicine, physical therapy, and orthopedics.