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intervertebral disc

Monday 10 September 2007

intervertebral disk

WKP PO

Definition : Normal intervertebral disc contains central nucleus pulposus (water, proteoglycans) within an annulus of obliquely oriented collagen fibers and a cartilaginous end plate.

Pathology

- senescence / ageing

  • Elderly have shrunken, yellowed and dehydrated nucleus pulposus

- protrusion
- prolapse
- extrusion
- sequestration

See also

- spine
- joints