Final answer:
The specific collagen type unique to intervertebral discs is not clearly stated in the provided content, but they are known to contain type II collagen. Intervertebral discs consist of the anulus fibrosus and the nucleus pulposus, providing structural support, shock absorption, and flexibility to the vertebral column.
Step-by-step explanation:
The type of collagen unique to intervertebral discs is not explicitly mentioned in the provided information. However, it is known that the intervertebral discs are rich in type II collagen, which is typical of cartilaginous tissues. Intervertebral discs are specialized structures composed of two parts: the anulus fibrosus and the nucleus pulposus. The anulus fibrosus is the tough, fibrous outer layer that anchors to the vertebral bodies, while the nucleus pulposus is a gel-like core that maintains water content for resisting compression and weight bearing. With age, changes in the water content of the nucleus pulposus lead to decreased height and range of motion.
Intervertebral discs, as part of the vertebral column, perform critical functions. They serve as slightly moveable joints, provide padding during weight bearing, contribute to body height, allow movements of the vertebral column, absorb shocks from daily activities, and act as ligaments to bind the vertebrae together. The variation in thickness from cervical to lumbar regions reflects the differing weight-bearing demands.