The term thorax describes which body part?

• A. Rib cage
• B. Back
• C. Abdomen
• D. Chest

Answer: (D)

The term thorax refers to the chest region—the area of the body between the neck and the abdomen. In anatomy, the thoracic cavity is formed by the rib cage and contains the heart and lungs, protected by the ribs and sternum. The back is a separate region of the trunk, and the abdomen lies below the diaphragm. While the rib cage is a key part of the thorax, the term itself describes the overall chest area. That makes chest the best match for what the thorax describes.