Which structure connects the ribs to the vertebrae?

The structure that connects the ribs to the vertebrae is not the intervertebral discs. Instead, the correct connection is made by the costal cartilage, which attaches the ribs to the sternum and also allows for the connection to the thoracic vertebrae through the rib joints.

The intervertebral discs serve a different purpose; they act as cushioning structures between adjacent vertebrae in the spine, providing flexibility and support but not linking the ribs with the vertebrae directly.

Understanding this anatomy is crucial for grasping the overall structure of the thorax and how it relates to movements, respiratory mechanics, and protection of vital organs. The ribs articulate with the thoracic vertebrae at the transverse processes, which allows for a dynamic and protective ribcage while enabling respiratory movements.