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Original Articles Open Access
The musculocutaneous nerve is one of the terminal branches of the lateral cord of the brachial plexus, and is responsible for innervation of the flexor musculature of the brachium, and cutaneous innervation of the lateral surface of the forearm. During dissection of 58 year old male cadaver, we observed a case of bilateral absence of the musculocutaneous nerve, the lateral root of median nerve on left side pierces and supply the coraco brachialis muscle and then gave three branches, first branch joined the medial root and formed the median nerve, second branch supplied the brachialis muscle and then continued as lateral cutaneous nerve of forearm. The third branch supplied the biceps brachii muscle. On right side lateral root of median nerve supplied the brachium close to its formation. These variations have clinical significance during surgical procedures, in brachial plexus block and in diagnostic clinical neurophysiology.
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Author(s): Ishwar B Bagoji M A Doshi Gavishiddappa A Hadimani Balappa M Bannur and B G Patil
Brachial plexus, Musculocutaneous nerve, Coracobrachialis, musculocutaneous nerve