Final answer:
The anulus fibrosus is the part of the intervertebral disc that attaches to the bodies of adjacent vertebrae, providing strong attachments and flexibility to the spinal column.
Step-by-step explanation:
The structure of the intervertebral disc that attaches to the bodies of adjacent vertebrae is the anulus fibrosus. This tough, fibrous outer portion of the intervertebral disc is strongly anchored to the bodies of the adjacent vertebrae. Within the disc, the anulus fibrosus surrounds the inner part called the nucleus pulposus, which is a softer, gel-like material. The anulus fibrosus allows the disc to be firmly attached to the vertebrae, providing integrity and strength to the spinal column. This arrangement allows for both strong attachments between vertebrae and flexibility and cushioning during movement.