Non-Symmetric Bilateral Three Headed-Biceps Brachii

Anatomical muscles’ variation may face clinician and surgeon with some dilemmas. Obviously, reporting a rare case of variations could explore some unexplained and unexpected clinical symptoms. Bilateral three head biceps, which had a supernumerary head with different origins in both right and left arms, is reported in this case report article. The crucial importance of arm muscles variations’ is because of their adjacent location to brachial nerve plexus and brachial vessels. Every single alteration in the direction of anatomical elements could result in pressure on nerve or vessels with clinical symptoms. Taken together, investigation and popularization of variations make a well-knowledged background for clinicians and surgeons. © 2019 Tehran University of Medical Sciences. All rights reserved. Acta Med Iran 2019;57(5):338-340.

Bilateral Three Headed Biceps Brachii Muscle

During routine human cadaveric dissection for the purpose of teaching learning of medical undergraduates inour department, third head of the biceps brachii muscle was found bilaterally in a 67 years old male cadaver. Bilaterally symmetrical third head was found with ß eshy proximal attachment on humerus between the insertionof the coracobrachialis and the upper part of the origin of the brachialis. This supernumerary head was deep tothe other two heads of biceps and was inserted into the bicipital aponeurosis. A branch of musculocutaneousnerve could be traced upto the third head. Long and short heads of biceps were of usual anatomy.doi: http://dx.doi.org/10.3126/mjsbh.v12i2.12931

Bilateral Three Headed Biceps Brachii Muscle: A Case Report

<p>During routine human cadaveric dissection for the purpose of teaching learning of medical undergraduates in our department, third head of the biceps brachii muscle was found bilaterally in a 67 years old male cadaver. Bilaterally symmetrical third head was found with fleshy proximal attachment on humerus between the insertion of the coracobrachialis and the upper part of the origin of the brachialis. This supernumerary head was deep to the other two heads of biceps and was inserted into the bicipital aponeurosis. A branch of musculocutaneous nerve could be traced upto the third head. Long and short heads of biceps were of usual anatomy.</p>