Which part of the body is protected by the rib cage?

The rib cage serves a vital protective role in the human body, particularly for the heart and lungs. It is a bony structure made up of ribs, sternum, and thoracic vertebrae, which surrounds and shields these critical organs from external trauma. Its primary function is to protect the thoracic cavity, where the heart resides, preventing it from injury during impacts or accidents.

While the brain is encased by the skull, and the spinal cord is protected by the vertebral column, the rib cage specifically safeguards the heart as well as the lungs, ensuring that these organs are shielded from harm. Thus, selecting the heart as the option reflects an understanding of the anatomy and the protective functions of the rib cage.