intervertebral disk

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intervertebral disk

A healthy intervertebral disk cushions the vertebrae in the spine.

Definition
  1. Noun:
    • A fibrocartilaginous disc serving as a cushion between vertebrae: An "intervertebral disk" is a flat, circular structure made of a tough, fibrous outer ring (annulus fibrosus) and a soft, gel-like center (nucleus pulposus). It acts as a shock absorber and allows for flexibility in the spinal column, located between all vertebrae except the first two in the neck (the atlas and axis).
Usage Examples
  • Noun:
    • A herniated intervertebral disk can cause significant back pain and nerve compression.
    • The surgeon explained how aging can lead to the natural degeneration of the intervertebral disk.
    • The MRI scan revealed a bulging intervertebral disk in his lumbar spine.
Advanced Usage

  • "Intervertebral disk disease (IVDD)": A common condition, especially in certain dog breeds, where the disk material degenerates and can herniate into the spinal canal.

    • The dachshund was diagnosed with intervertebral disk disease and required surgery.

  • "Intervertebral disk space": The anatomical space between two vertebral bodies occupied by the disk.

    • The X-ray showed a narrowing of the intervertebral disk space, indicating potential degeneration.
Variants and Related Words
  • Intervertebral disc: An alternative spelling, where "disc" is used interchangeably with "disk" in this medical context.
  • Spinal disc: A more general, common term for an intervertebral disk.
  • Annulus fibrosus (n): The tough, outer fibrous ring of an intervertebral disk.
  • Nucleus pulposus (n): The soft, gelatinous central core of an intervertebral disk.
Synonyms
  • Spinal disk: A cushion between the bones of the spine.
  • Intervertebral cartilage: Refers to the cartilaginous nature of the structure.
Related Phrases

  • Disk herniation: The condition where part of the nucleus pulposus pushes through a tear in the annulus fibrosus.

    • His sciatica was caused by a disk herniation at the L5-S1 level.

  • Disk degeneration: The wear and tear or aging process of an intervertebral disk.

    • Disk degeneration is a normal part of aging but can be accelerated by injury.
Related Terms
  • Vertebra: Any of the bony segments that form the spinal column.
  • Spinal column: The series of vertebrae extending from the skull to the tailbone; the backbone.
  • Cartilage: The smooth, elastic connective tissue from which parts of the intervertebral disk are composed.
intervertebral disk

A healthy intervertebral disk cushions the vertebrae in the spine.

Noun
  1. a fibrocartilaginous disc serving as a cushion between all of the vertebrae of the spinal column (except between the first two)

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