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International Journal of Anatomical Variations

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Anatomical variation in the innervation of the median nerve and the absence of musculocutaneous nerve: A Case Report

Author(s): Pallavi Arora*, Mohd Anas Khan and Renu Dhingra

The median nerve is one of the five main nerves originating from the brachial plexus and provides motor and sensory innervation to parts of the forearm and hand. We reported unusual innervation of the median nerve in the arm during routine dissection. Imaging was done using a Canon EOS R50 with a 24.2-megapixel effective resolution. Biceps brachii and brachialis muscles were observed innervated by the median nerve branches, and the musculocutaneous nerve was not found during routine dissection. This rare variation may result in unexpected clinical presentations in cases of traumatic injuries or paralysis. Knowledge of such variations is, therefore, of clinical and surgical importance.


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