Which bone is the breastbone located at the center front of the rib cage and is divided into three parts?

Which bone is the breastbone located at the center front of the rib cage and is divided into three parts?

• A. Sternum
• B. Clavicle
• C. Scapula
• D. Rib

Answer: (A)

The bone located at the center front of the rib cage and divided into three parts is the sternum. It sits along the midline of the chest and forms the front wall of the thoracic cage, connecting to the ribs via cartilage and helping protect the heart and lungs. The sternum is made up of three regions: the upper manubrium, the central body, and the lower xiphoid process. The other options don’t fit this description: the clavicle is the collarbone that sits above the rib cage and links to the sternum, not the central bone itself; the scapula is the shoulder blade located on the back; and a rib is one curved bone of the rib cage, not a single bone subdivided into three parts.

The bone located at the center front of the rib cage and divided into three parts is the sternum. It sits along the midline of the chest and forms the front wall of the thoracic cage, connecting to the ribs via cartilage and helping protect the heart and lungs. The sternum is made up of three regions: the upper manubrium, the central body, and the lower xiphoid process. The other options don’t fit this description: the clavicle is the collarbone that sits above the rib cage and links to the sternum, not the central bone itself; the scapula is the shoulder blade located on the back; and a rib is one curved bone of the rib cage, not a single bone subdivided into three parts.