The nucleus pulposus primarily functions as what?

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Multiple Choice

The nucleus pulposus primarily functions as what?

The nucleus pulposus acts as the gel-like center of the intervertebral disc, primarily absorbing and distributing compressive loads. Its high water content and proteoglycan-rich matrix allow it to deform under pressure and spread forces radially to the surrounding annulus fibrosus and the vertebral endplates, reducing peak stress on a single point. Because it is enclosed by the tougher outer ring, the nucleus mainly accommodates compression with limited movement of the disc as a unit. The outer protective layer is the annulus fibrosus, the cartilaginous endplates sit at the disc-vertebra interface, and a muscle-tendon interface is not part of the disc’s function.

The nucleus pulposus acts as the gel-like center of the intervertebral disc, primarily absorbing and distributing compressive loads. Its high water content and proteoglycan-rich matrix allow it to deform under pressure and spread forces radially to the surrounding annulus fibrosus and the vertebral endplates, reducing peak stress on a single point. Because it is enclosed by the tougher outer ring, the nucleus mainly accommodates compression with limited movement of the disc as a unit. The outer protective layer is the annulus fibrosus, the cartilaginous endplates sit at the disc-vertebra interface, and a muscle-tendon interface is not part of the disc’s function.

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