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CC BY-NC-ND 4.0 · Journal of Morphological Sciences 2014; 31(03): 159-161
DOI: 10.4322/jms.058513
Case Report
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

A rare branching pattern of ulnar nerve in the lower arm

O. S. Oyedun
1   Gross Anatomy Laboratory, Department of Anatomy, Faculty of Basic Medical Sciences, University of Ibadan, 234 Ibadan, Oyo State, Nigeria
,
O. A. Onatola
1   Gross Anatomy Laboratory, Department of Anatomy, Faculty of Basic Medical Sciences, University of Ibadan, 234 Ibadan, Oyo State, Nigeria
,
C. L. Kanu
1   Gross Anatomy Laboratory, Department of Anatomy, Faculty of Basic Medical Sciences, University of Ibadan, 234 Ibadan, Oyo State, Nigeria
,
O. P. Zelibe
1   Gross Anatomy Laboratory, Department of Anatomy, Faculty of Basic Medical Sciences, University of Ibadan, 234 Ibadan, Oyo State, Nigeria
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Further Information

Publication History

03 June 2013

29 August 2014

Publication Date:
08 October 2018 (online)

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Abstract

Introduction: The ulnar nerve is one of the two terminal branches of the medial cord. It passes down the medial aspect of the arm and runs posterior to medial epicondyle to enter the forearm without branching. Previously, ulnar nerve variations have been consistently located in origin or course of the distal branches. Case Report: In this present case, an unreported rare bifurcation of ulnar nerve was seen in the left lower arm of a 65 year male cadaver with the resulting posteromedial and anterolateral branches arising above the medial epicondyle in.Its phylogeny and implications are discussed in detail. Conclusion: A lack of awareness of variations might complicate surgical repair and may cause ineffective nerve blockade.

Keywords

bifurcation - lower arm - ulnar nerve