Comparative development of thoracic intervertebral discs and intra-articular ligaments in the human, monkey, mouse, and cat

C. L. Lohse, D. M. Hyde, D. R. Benson

Research output: Contribution to journalArticle

Abstract

Developmental features of thoracic intervcrtrebral discs and their association in the adult with other vertebral structures were investigated in four species. The human anuius fibrosus. nucleus pulposus. and intraarticular ligaments were compared to those of the fetal rhesus monkey, mouse, and kitten. Photomicrographs of transverse sections of intervertebral discs document the presence of intra-urticular ligaments in fetuses of these four species. Both transverse and sagittal sections of kittens were used to identify the intercapital ligament as it differentiated from the dorsal part of the intra-articular ligament. Relatively frequent dorsal herniation of the thoracic nucleus pulposus in humans may be due to the vestigial nature of the human intra-articular ligament. Quadrupeds have well-developed intra-articular ligaments, which explains anatomically the paucity of dorsal protrusions of the nucleus pulposus into the vertebral canal in the thoracic region of the cat and mouse when compared to the human. The intra-articular ligament was closely associated with the developing prenatal mammalian intervertebral disc in the four species studied, and this relationship and its surgical importance are described.

Original languageEnglish (US)
Pages (from-to)220-228
Number of pages9
JournalCells Tissues Organs
Volume122
Issue number4
DOIs
StatePublished - 1985

Fingerprint

Articular Ligaments
Intervertebral Disc
Haplorhini
Cats
Thorax
Ligaments
Macaca mulatta
Fetus
Nucleus Pulposus

Keywords

  • Anulus fibrosus
  • Comparative anatomy
  • Human
  • Intra-urticular ligaments
  • Nucleus pulposus
  • Thoracic intervertebral discs

ASJC Scopus subject areas

  • Anatomy
  • Histology

Cite this

Comparative development of thoracic intervertebral discs and intra-articular ligaments in the human, monkey, mouse, and cat. / Lohse, C. L.; Hyde, D. M.; Benson, D. R.

In: Cells Tissues Organs, Vol. 122, No. 4, 1985, p. 220-228.

Research output: Contribution to journalArticle

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