Elastic fibers in the anulus fibrosus of the dog intervertebral disc

Eldridge F. Johnson, Robert William Caldwell, Hugh E. Berryman, Andrea Miller, Kothapada Chetty

Research output: Contribution to journalArticle

Abstract

A light microscopic investigation of the anulus fibrosus in cervical intervertebral discs of the dog was conducted to ascertain the arrangement and distribution of elastic fibers. Elastic fibers were observed in all lamellae of the anulus fibrosus. However, collagenous fibers were the predominant type of connective tissue fiber, and elastic fibers were randomly dispersed among them. Intralamellar (collagenous and elastic) fibers were vertically and obliquely oriented in both superficial and deep lamellae of the anulus fibrosus. All intralamellar fibers were densely and regularly arranged in superficial lamellae, but they were more loosely organized in deep lamellae. A narrow border of interlamellar, elastic fibers was observed between broader, contiguous lamellae in the superficial zone of the anulus fibrosus. Interlamellar elastic fibers were vertically and obliquely arranged in superficial lamellae however, they were radially oriented in deep lamellae. The deepest lamella of the anulus fibrosus consisted of a loose, three-dimensional network of intermeshing collagenous and elastic fibers. These observations suggest that elastic fibers are integral components of the articular and shock absorption mechanisms of the anulus fibrosus, and the cervical intervertebral disc of the dog is a suitable model for experimental investigation of the role of elastic fibers in intervertebral disc herniation.

Original languageEnglish (US)
Pages (from-to)238-242
Number of pages5
JournalCells Tissues Organs
Volume118
Issue number4
DOIs
StatePublished - Jan 1 1984
Externally publishedYes

Fingerprint

Elastic Tissue
Intervertebral Disc
Dogs
Annulus Fibrosus
Connective Tissue
Shock
Theoretical Models
Joints
Light

Keywords

  • Anulus fibrosus
  • Collagenous fiber
  • Elastic fiber
  • Intervertebral disc
  • Nucleus pulposus

ASJC Scopus subject areas

  • Anatomy
  • Histology

Cite this

Elastic fibers in the anulus fibrosus of the dog intervertebral disc. / Johnson, Eldridge F.; Caldwell, Robert William; Berryman, Hugh E.; Miller, Andrea; Chetty, Kothapada.

In: Cells Tissues Organs, Vol. 118, No. 4, 01.01.1984, p. 238-242.

Research output: Contribution to journalArticle

Johnson, EF, Caldwell, RW, Berryman, HE, Miller, A & Chetty, K 1984, 'Elastic fibers in the anulus fibrosus of the dog intervertebral disc', Cells Tissues Organs, vol. 118, no. 4, pp. 238-242. https://doi.org/10.1159/000145851
Johnson, Eldridge F. ; Caldwell, Robert William ; Berryman, Hugh E. ; Miller, Andrea ; Chetty, Kothapada. / Elastic fibers in the anulus fibrosus of the dog intervertebral disc. In: Cells Tissues Organs. 1984 ; Vol. 118, No. 4. pp. 238-242.
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