Journal of Advanced Biomedical Sciences

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Jafaei Soogh A, Absalan F, Niazvand F.  A Rare Anatomical Variation in Branching Pattern of Ulnar Nerve. JABS 2020; 10 (3) :2400-2403
URL: http://jabs.fums.ac.ir/article-1-2385-en.html

Background & Objective: Recognition of peripheral nerve variations plays a crucial role in therapist or surgeon evaluations. In human arm, ulnar nerve is one of the three principal nerves that move from the neck down to the hand and provide sense and function of the hand.
Case: Present article reports a scarce finding, the unusual branch of the ulnar nerve along with the main trunk originated under the flexor carpi ulnaris near the cubital region. After descending along the medial side of the forearm flexor surface about 5 cm proximal to the wrist has been divided into 2 cutaneous branches.
Conclusion: Awareness and ability in recognition of position and variations significantly influence the result of ulnar nerve improvement. Sufficient knowledge of all possible variations may be helpful for surgical improvement and effective nerve blockage.