Incidence of the Third Head of the Biceps Brachii in the Uttar Pradesh Population

Dr. Prerna Jagdish; Dr. Vivek Parashar; Dr R. K. Ashoka

Volume : VII, Issue : III, March - 2018

Incidence of the Third Head of the Biceps Brachii in the Uttar Pradesh Population

Dr. Prerna Jagdish, Dr. Vivek Parashar, Dr R. K. Ashoka

Abstract :

Biceps achii is a dual headed flexor muscle of flexor compartment of upper arm, originates proximally with a long head from supraglenoid tubercle and short head from coracoid process of scapula. Our aim was to elucidate the incidence and morphological features of the third head of the biceps achii muscle. Out of 30 cadavers, we found the three headed biceps achii unilaterally in four male cadavers, one belonging to the left side and three to right side. The third head was observed in four cadavers, inging its overall incidence to 13.33%. While the short and long head had a normal origin, in three cases the third head originated near the insertion of the coracoachialis and at the origin of the achialis and in both cases it goes and merges with the remaining two heads and inserted into the posterior part of radial tuberosity. One was thicker as compared to the rest. In fourth case it originates along with the long head of biceps achii and then the third head crosses the musculocutaneous and median nerve in the middle of arm and then finally its tendon goes and inserts into the deep fascia of the arm