Which cartilage connects the sternum to the ends of the ribs?

• A. Hyaline cartilage
• B. Costal cartilage
• C. Articular cartilage
• D. Fibrocartilage

Answer: (B)

Connecting the sternum to the ends of the ribs is done by costal cartilage. These bridges are made of hyaline cartilage, which provides a smooth, flexible link that allows the rib cage to expand and contract during breathing. Costal cartilage directly attaches the true ribs to the sternum (or to the cartilage above, in the case of some false ribs), enabling the chest wall’s mobility.

Hythe cartilage refers to the tissue type present in costal cartilage, but the specific connector in this context is costal cartilage. Articular cartilage lines joint surfaces, such as at synovial joints; fibrocartilage is a tougher type found in discs and other structures requiring more support.