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An unusual origin for the accessory head of biceps brachii muscle

✍ Scribed by Mustafa F. Sargon; Doğan Tuncali; Hamdi Çelik

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
232 KB
Volume
9
Category
Article
ISSN
0897-3806

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✦ Synopsis

During the superficial dissection of the pectoral region and the arm, an abnormal biceps brachii muscle was observed unilaterally. This muscle had three heads. Whereas the short and long heads had their normal origin, the accessory head originated from the anterior surface of the distal part of the pectoralis major muscle, which formed the anterior axillary fold. To our knowledge, this variation has not been previously described. Innervation and vascular supply of this accessory head was from the musculocutaneous nerve and the brachial artery, respectively.

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