What category do ribs 8-10 fall into?

Ribs 8-10 are classified as false ribs because they do not attach directly to the sternum. Instead, they are connected to the cartilage of the rib above them, which ultimately leads to the sternum. This indirect attachment distinguishes false ribs from true ribs, which directly connect to the sternum via their own costo-sternal cartilages. The categorization of ribs is important in understanding the structure of the thoracic cage and how it protects vital organs like the heart and lungs while allowing for expansion during respiration.

The other categories such as true ribs, floating ribs, and attached ribs serve different functions and have different structural characteristics. True ribs, for example, include ribs 1-7, which connect directly to the sternum. Floating ribs, which are ribs 11 and 12, do not attach to the sternum at all and are free at their anterior ends. The use of "attached ribs" is not a standard classification in this context and might create confusion, as the concept primarily deals with direct or indirect connections to the sternum.