Nucleus pulposus
Nucleus Pulposus
The Nucleus Pulposus (pronounced: noo-klee-us pul-po-sus) is a gel-like substance located in the center of the intervertebral disc. It plays a crucial role in the spine's anatomy and function.
Etymology
The term "Nucleus Pulposus" originates from Latin, where "nucleus" means "core" and "pulposus" refers to its pulpy, gelatinous consistency.
Function
The Nucleus Pulposus serves as a shock absorber, distributing loads evenly across the disc. It also helps maintain the disc's height, thereby preventing the vertebrae from grinding against each other.
Related Terms
- Intervertebral disc: The disc that separates and cushions the vertebrae in the spine.
- Vertebrae: The individual bones that stack to make the spine.
- Annulus Fibrosus: The tough, fibrous outer layer of the intervertebral disc that surrounds the Nucleus Pulposus.
- Disc Degeneration: A condition where the intervertebral discs, including the Nucleus Pulposus, deteriorate or break down.
Pathology
When the Nucleus Pulposus leaks out of the disc, it can cause a condition known as a disc herniation. This can lead to pain, numbness, or weakness in the limbs.
See Also
External links
- Medical encyclopedia article on Nucleus pulposus
- Wikipedia's article - Nucleus pulposus
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