Which bone forms the anterior chest wall?

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Multiple Choice

Which bone forms the anterior chest wall?

Explanation:
The sternum forms the front part of the rib cage, lying in the midline of the chest. It acts as the central anchor for the true ribs via costal cartilage and protects the heart and lungs. The sternum has three parts—the manubrium, the body, and the xiphoid process—together forming the anterior chest wall. The other options aren’t involved in forming the front of the chest: the scaphoid is a wrist bone, the scapula is the shoulder blade on the back, and silicosis is a lung disease from silica exposure.

The sternum forms the front part of the rib cage, lying in the midline of the chest. It acts as the central anchor for the true ribs via costal cartilage and protects the heart and lungs. The sternum has three parts—the manubrium, the body, and the xiphoid process—together forming the anterior chest wall.

The other options aren’t involved in forming the front of the chest: the scaphoid is a wrist bone, the scapula is the shoulder blade on the back, and silicosis is a lung disease from silica exposure.

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