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THE VARIATION PATTERNS OF THE BRACHIAL ARTERIAL TRUNK IN CHINESE AND A DISCUSSION OF ITS CHINESE TERM
Author(s): 
Pages: 130-140
Year: Issue:  2
Journal: Acta Anatomica Sinica

Keyword:  臂动脉动脉干变异率正中神经挠动脉肌支干型弓形动脉臂区正常型;
Abstract: 700 upper extremities of 350 Chinese adults were dissected.The courses of brachial arterial trunks may be grouped into 3 principle patterns:Normal(582 cases,83.14%), superficial brachial(64 cases,9.14%)and double trunks(54 cases,7.72%).Among the 350 cadavers,variations appeared bilaterally in 31 bodies(8.86%);unilaterally in 56 bodies(16.00%).The variations always occurred more often on the right(70 cases, 20.00%)than on the left(48 cases,13.71%). Among the 118 cases there were 64 cases with single arterial trunks of the arm accounting 54.24% of the total variations and double trunks in 54 cases,accounting for 45.76%.In 114 cases(16.29%)only one trunk occurred as a.brachialis superficialis. Its continuation in the forearm was grouped as follow: 1.Continued into a.radiailis and a.ulnaris in 67(58.77%)extremities 2.Continued into a.radiailis in 40(35.09%)extremities. 3.Continued into a.ulnaris in 2(1.75%)extremities. 4.Ended into a union at the cubital fossa and then divided again into a.radialis and a.ulnaris in 4 cases;in the remaining case it was a muscular branch from the superficial brachial artery. The significance of the pattern and chinese terms of the brachial arteral trunks was discussed.
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