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Titolo:
SHOULDER REGION OF THE RAT - ANATOMY AND FIBER COMPOSITION OF SOME SUPRASCAPULAR NERVE BRANCHES
Autore:
NORLIN R; HOEHANSEN C; OQUIST G; HILDEBRAND C;
Indirizzi:
LINKOPING UNIV,FAC HLTH SCI,DEPT CELL BIOL S-58185 LINKOPING SWEDEN LINKOPING UNIV,FAC HLTH SCI,DEPT CELL BIOL S-58185 LINKOPING SWEDEN LINKOPING UNIV,FAC HLTH SCI,DEPT ORTHOPED SURG LINKOPING SWEDEN
Titolo Testata:
The Anatomical record
fascicolo: 3, volume: 239, anno: 1994,
pagine: 332 - 342
SICI:
0003-276X(1994)239:3<332:SROTR->2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEDIAL ARTICULAR NERVE; NEUROGENIC INFLAMMATION; KNEE-JOINT; UNMYELINATED AXONS; RHEUMATOID-ARTHRITIS; IMPINGEMENT SYNDROME; TRIBUTARY NERVES; SCAPULAR MUSCLES; SUBSTANCE-P; GROUP-III;
Keywords:
RAT; SHOULDER REGION; GROSS ANATOMY; SUBACROMIAL SPACE; SUPRASPINATUS MUSCLE; SUPRASCAPULAR NERVE; FIBER COMPOSITION; ELECTRON MICROSCOPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
63
Recensione:
Indirizzi per estratti:
Citazione:
R. Norlin et al., "SHOULDER REGION OF THE RAT - ANATOMY AND FIBER COMPOSITION OF SOME SUPRASCAPULAR NERVE BRANCHES", The Anatomical record, 239(3), 1994, pp. 332-342

Abstract

Background: The pathophysiology of chronic supraspinatus tendinitis is not fully understood. This may be due to the scarcity of experimental studies on this issue. Methods: In search for a system suitable for experimental analysis, the present study describes the relevant gross anatomy of the rat shoulder region (dissection), and examines the fiber composition of relevant suprascapular nerve branches (electron microscopy, selective denervations). Results: The rat shoulder region is similar to the human shoulder in terms of gross anatomy. The average suprascapular nerve (SSC) is derived mainly from the spinal cord segment C5 and contains 3,435 axons, 74% of which are unmyelinated. The supraspinatus branch (SSP) contains 627 fibers. Of the SSP fibers, 52% are myelinated, including 32% motor and 20% sensory axons. Of the C-fibers in the SSP 16% are sympathetic efferents and 32% are sensory. Many of the latter disappear after neonatal capsaicin treatment. The SSC emitsa subacromial articular branch (ART), with some 260 axons, about 90% of which are unmyelinated. The myelinated ART fibers are sensory, and of the unmyelinated ones about 24% are sympathetic efferents and 66% are afferents. The latter resist neonatal capsaicin treatment. Conclusions: In view of the anatomy of the supraspinatus muscle, of the subacromial space, and of relevant nerves, the rat shoulder should be appropriate for experimental studies on inflammatory conditions in the subacromial space. (C) 1994 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 12:50:42