An Unusual Brachial Plexus Formation *


The standard anatomy textbooks of today agree that the brachial plexus in man is derived from the anterior rami of the fifth, sixth, seventh, and eighth cervical and first thoracic nerves (Fig. 1). The anterior rami of the fifth and sixth cervical nerves are described as uniting at the outer border of the scalenus medius to form the cephalic trunk, the… (More)


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