Illustrated Encyclopedia of Human Anatomic Variation: Opus II: Cardiovascular System
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
This study was based on 750 laboratory specimens.
A: Branch of suprascapular artery; 292 of 750 sides, 38.93%; 139 right, 153 left.
B: Branch of transverse cervical artery; 250 of 750 sides, 33.33%; 125 right, 125 left.
C: Direct branch of thyrocervical trunk; 117 of 750 extremities, 15.6%; 68 right, 49 left.
D: Branch of the inferior thyroid artery; 58 of 750 extremities, 7.73%; 27 right, 31 left.
E: As common trunk with ascending cervical artery; 21 of 750 sides, 2.80%; 6 right, 15 left. In 31 additional cases, the small ascending cervical arose as a branch of the superficial cervical artery, derived in turn from some other source.
F: Direct branch from first portion of subclavian artery; 7 of 750 extremities, 0.93%; right side.
G: Branch of internal thoracic artery; 4 of 750 sides, 0.53%; right, 3 left.
H: From common trunk with the deep cervical artery or costocervical trunk; 1 of 750 specimens, 0.13%; left side.
Redrawn from Daseler, E.H. and B.J. Anson. Surgical anatomy of the subclavian artery and its branches. Surg. Gynecol. Obstet. 108:149-174, 1959.
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