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Case Report

Variations Associated with Median Nerve and Musculocutaneous Nerve: A Case Report

Pratima Baisakh , Pratima Baisakh , Chinmayee Mohapatra , Minati Patra , Bijay Kumar Dutta

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Indian Journal of Anatomy 2(2):p 93-94, July - December 2013. | DOI:

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Abstract

Anatomic variations involving different nerves and muscles of upper limb are known to occur. Knowledge of any deviation from the normal pattern of distribution of anatomical structures helps the surgeons and other clinicians during any intervention of the upper limb. In the present case, during routine dissection of a female cadaver in the left upper limb, we found communication between left median nerve and musculocutaneous nerve in the proximal region of arm and left musculocutaneous not piercing the coracobrachialis muscle in the arm. The musculocutaneous nerve instead of piercing coracobrachialis passes in between biceps and brachialis. Coracobrachialis is supplied by a branch directly from the lateral cord and another from musculocutaneous nerve. However, the rest of the distribution of the median and musculocutaneous nerve were normal. 

Key words: Musculocutaneous nerve; Coracobrachialis muscle; Biceps; Brachialis.

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