An anatomical study of the role of the long thoracic nerve and the related scapular bursae in the pathogenesis of local paralysis of the serratus anterior muscle
✍ Scribed by Thomas Horwitz, M. ;Tocantins, Leandro M.
- Publisher
- John Wiley and Sons
- Year
- 1938
- Tongue
- English
- Weight
- 646 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0003-276X
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✦ Synopsis
FOUK FIGUXES
Recaus:c of dil-ergiiig opinioiis and conflicting data on the ctio1og:o f imlated p r a l y s i s of the serratus anterior (maguus) muscle, n htiidy of the origin, structural variations, and relations of the long thoracic nerve was undertalien. A search of the literature revealed oiily the coiitributioris of Struthers ( 'Oil aiid Dargeni ( ' 3 5 ) , based on twenty-five dissections and a study of twenty spwiiiieiis, respectiaely. The data and con-c~lusions of the present iiivcstigation a r e derived from a n analysis of 100 dissections in fifty human caclarera. Many of the structural coiiclitioiis considered as abnormal and anomal o w by Slr.ntlierk a i d Daygent a r e interpreted in the prescnt and larger beries as falliiig within normal variational range.
C'OXIFOSITION O F TR E LOScl THORACIC NERVE
The inain trimli of the iicrve was formed in 84% of the cases hy the -riiiioii o f brandies from the anterior divisions of the fifth, sixth a i d s e r ~n t l i cervical nerves. In 8 % , the branch from the s e r m t h nerve was lacking, aiid in another-87,, the nerve W R R formed from brandies of the fifth, sixth, seventh and eighth nerves. Tlie branches forming the long thoracic nerve were noted to arise obliquely from above, downward 37s T H E A N 4 T < l M I C 4 L RECCIRll TO!, 71, N O 4 4U(.Lk.T 1938