Answer :
Final answer:
In degenerative disc disease, reduced disc height is commonly found due to wear and tear and dehydration of the discs. The joint between vertebrae including an intervertebral disc is classified as an amphiarthrosis type of joint. The correcct answer is option D.
Explanation:
The condition often found in degenerative disc disease is reduced disc height. In degenerative disc disease, the intervertebral discs lose height and hydration, which can lead to spine-related problems. This reduction in disc height is due to the wear and tear of the disc material, primarily the annulus fibrosus, and the loss of water content from the nucleus pulposus over time. These changes contribute to the discs' diminished ability to absorb shock and can cause stiffness and pain.
The joint between adjacent vertebrae that includes an intervertebral disc is classified as an amphiarthrosis type of joint. Specifically, intervertebral discs structurally form a symphysis type of cartilaginous joint, which allows for limited movement between the vertebrae while also absorbing shocks from activities like walking and running.
