Musculocutaneous nerve typically pierces the coracobrachialis muscle. During gross anatomy dissections of the upper extremities, for freshman undergraduates, in the department of Anatomy, Mamata Medical College, Andhra Pradesh, the coracobrachialis muscle was found to be innervated by a nerve branch arising from the lateral cord of the brachial plexus. The musculocutaneous nerve was found to course downwards medial to coracobrchialis and biceps brachii muscles and then pierce the bceps brachii instead of coracobrachialis muscle. The coracobrachialis was found in deeper plane, posterior to short head of biceps brachii rather than medial to it. No other abnormality was observed in the branching pattern of the brachial plexus on both sides. Knowledge of the anatomical variations of the location of coracobrachialis and peripheral nervous system is important to clinicians and surgeons in interpreting unusual clinical presentations.