Which bone joins the sternum and scapula?

• A. Non-striated
• B. Auricularis superior
• C. Humerus
• D. Clavicle

Answer: (D)

The bone that bridges the sternum and the scapula is the clavicle. This is the only long bone that directly links the axial skeleton to the upper limb: sternoclavicular joint is where the clavicle meets the sternum, giving the chest a direct bony connection to the shoulder girdle. From there, the clavicle extends laterally to articulate with the scapula at the acromioclavicular area, allowing the scapula to move with the arm while remaining supported.

Other options aren’t bones that connect these two structures. A non-striated feature refers to smooth muscle, not a bone. The humerus is the upper arm bone that connects to the scapula but not directly to the sternum. The auricularis superior is a facial muscle near the ear. Because the clavicle uniquely links sternum and scapula, it’s the correct choice.