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
Sd= Right subclavian artery; mmi= internal thoracic artery; mml= lateral thoracic artery.
The internal thoracic artery may give rise to a lateral internal thoracic artery as it enters the thorax. The lateral internal thoracic artery courses about midway between the spine and sternum or somewhat forward toward the midline; it spans up to six intercostal spaces and anastomoses with intercostal arteries of those spaces. A lateral internal thoracic artery may also arise from the costocervical trunk, thyrocervical trunk, or ascending cervical arteries. The possibility of the existence of this vessel must be remembered when paracentesis is performed.
from Henle, J. (1865) Handbuch der Systematischen Anatomie des Menschen, 3rd ed., von Friedrich Vieweg und Sohn, Braunschweig.
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