IJCRR - Vol 06 Issue 06, March, 2014
CLINICALLY SIGNIFICANT UNILATERAL VARIATION OF MUSCULOCUTANEOUS NERVE
Author: Krishnendu Bhowmik, Arpita Sarkar
During routine dissection conducted for undergraduates study in the Department of Anatomy, Kolkata Medical College, variations in the course of musculocutaneous nerve was found in two cadavers.In normal individuals the Musculocutaneous nerve arises from the lateral cord of the brachial plexus, passes inferolaterally and then pierces through the coracobrachialis muscle after supplying it. Then it descends between the biceps and the brachialis muscle, sending branches to both the muscle and continues as the lateral cutaneous nerve of the forearm. In our cases we found that the musculocutaneous nerve did not pierce the coracobrachialis muscle and in the middle 1/3rd of arm, it communicates with median nerve. Knowledge about these variations helps surgeons during operation of brachial plexus lesions, arthoscopy of shoulder joints and repair of fracture humerus.
Keywords: Brachial plexus, Coracobrachialis, Median nerve, Musculocutaneous nerve
Krishnendu Bhowmik, Arpita Sarkar. CLINICALLY SIGNIFICANT UNILATERAL VARIATION OF MUSCULOCUTANEOUS NERVE International Journal of Current Research and Review. Vol 06 Issue 06, March, 75-79
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