Quantitative analysis of the anatomy of the epineuriun of the canine recurrent laryngeal nerve

Julie M. Barkmeier, Erich S. Luschei

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The purpose of this investigation was to determine the amount of epineurium surrounding the recurrent laryngeal nerve (RLN) compared with a limb nerve, that to flexor hallicus longus (NFHL). Nerve samples were obtained from 10 adult dogs and studied using scanning electron microscopy and light microscopy to measure the relative proportion of epineurium and the relative proportions of adipose and collagenous tissue comprising the epineurium in both nerves. Significantly greater relative epineurial cross-sectional areas and adipose content were found in the RLN than in the NFHL. Based on observations on noncranial peripheral nerves, the findings indicate that the RLN is better protected against deformational forces associated with compression than stretching forces. The RLN may not be structured well for successful reinnervation after injury. The patterns observed for adipose tissue in RLN epineurial tissue appeared unique compared with those previously reported in peripheral nerves. The primary role associated with adipose tissue is to 'package' the nerve for protection. The RLN is considered to be a viral nerve in the body, as are other cranial nerves. The large proportions of adipose tissue in the epineurium may relate to the importance of protecting this nerve from injury.

Original languageEnglish (US)
Pages (from-to)85-101
Number of pages17
JournalJournal of Anatomy
Volume196
Issue number1
DOIs
StatePublished - Jan 2000
Externally publishedYes

Fingerprint

Recurrent Laryngeal Nerve
Peripheral Nerves
anatomy
quantitative analysis
Canidae
Anatomy
nerve tissue
Adipose Tissue
dogs
peripheral nerves
Nerve Tissue
adipose tissue
Cranial Nerves
Wounds and Injuries
limb
microscopy
Electron Scanning Microscopy
scanning electron microscopy
compression
tissue

Keywords

  • Connective tissues
  • Peripheral nerve

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Anatomy

Cite this

Quantitative analysis of the anatomy of the epineuriun of the canine recurrent laryngeal nerve. / Barkmeier, Julie M.; Luschei, Erich S.

In: Journal of Anatomy, Vol. 196, No. 1, 01.2000, p. 85-101.

Research output: Contribution to journalArticle

Barkmeier, Julie M. ; Luschei, Erich S. / Quantitative analysis of the anatomy of the epineuriun of the canine recurrent laryngeal nerve. In: Journal of Anatomy. 2000 ; Vol. 196, No. 1. pp. 85-101.
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