What structure is referred to as the nucleus pulposus?

The nucleus pulposus is indeed described as the soft, inner core of the intervertebral disc. This gelatinous substance is primarily composed of water and a network of collagen fibers, which gives it a unique ability to absorb compressive forces and provide cushioning between the vertebrae. The nucleus pulposus plays a critical role in maintaining the structural integrity of the spine and helps in spinal flexibility and mobility.

In addition to the function of weight distribution and shock absorption, the nucleus pulposus also assists in the movement of water and nutrients within the disc, particularly during the loading and unloading of spinal discs during daily activities. As a result, it is essential for maintaining overall spinal health.

Understanding the anatomy of the intervertebral disc contributes significantly to recognizing conditions such as disc herniation or degeneration, where the integrity of the nucleus pulposus is compromised, leading to pain and reduced mobility.