What is the main characteristic of degenerative disc disease?

• A. Inflammation of spinal nerves
• B. Deterioration of intervertebral discs
• C. Formation of spinal tumors
• D. Rapid growth of vertebral bones

Answer: (B)

The main characteristic of degenerative disc disease is the deterioration of intervertebral discs. This condition involves the progressive breakdown of the discs that serve as cushions between the vertebrae in the spine. These discs are composed of a tough outer layer and a gel-like center, which help absorb shock and maintain spinal flexibility. Over time, factors such as age, wear and tear, and genetic predisposition can lead to changes in the discs, including dehydration, loss of elasticity, and the development of tears.

As the intervertebral discs degenerate, they may cause a decrease in the height of the discs, leading to reduced space in the spinal canal and potentially affecting surrounding structures, including nerves. This is a common source of pain and discomfort in individuals with degenerative disc disease. The condition often presents with symptoms such as back pain and stiffness, which may be exacerbated by movement or certain activities.

In contrast, the other choices describe different conditions or processes not primarily associated with degenerative disc disease. Inflammation of spinal nerves is related to other disorders, such as radiculopathy or autoimmune conditions. The formation of spinal tumors refers to aberrant cell growth that typically involves different pathological mechanisms. Rapid growth of vertebral bones would be indicative of a condition