Florida Basic Recruit Training Program High Liability (First Aid) Practice Exam

What protects the spinal cord and serves as the primary support for the body?

1. Collarbone

2. Ribs

3. Sternum

4. Vertebrae

The correct answer is: Vertebrae

The vertebrae are a series of individual bones that make up the spine, serving two primary functions: protecting the spinal cord and providing structural support for the body. The spinal cord runs through the central canal of the vertebrae, which acts like a bony shield, safeguarding it from injury. Additionally, the vertebrae play a crucial role in maintaining the upright posture of the body and enabling a range of movements, including bending and twisting. In contrast, the collarbone (clavicle), ribs, and sternum are vital components linked to the upper body and chest but do not provide the same direct protection to the spinal cord or serve as the primary support structure for the body. The ribs offer protection to the thoracic organs and support for the chest, while the sternum, situated in the center of the chest, connects the ribs via cartilage. The collarbone helps stabilize the shoulder but does not contribute directly to spinal protection or support as the vertebrae do. This highlights why the vertebrae are correctly identified as the backbone of both protection and support in the body.