An: 2019, Nr.4, Articol Nr. 9
ANATOMICAL CONSIDERATIONS REGARDING THE ORIGIN OF THE LEFT SUBCLAVIAN ARTERY
Mihaela Bizadea, P. Bordei - “Ovidius” University, Constanta, Faculty Of Medicine, Department of Anatomy
Anna Sachoulidou - Thessaloniki Clinical Hospital
ANATOMICAL CONSIDERATIONS REGARDING THE ORIGIN OF THE LEFT SUBCLAVIAN ARTERY (Abstract): The most frequently, in the 56,25% of cases, the left subclavian had its origin into the left half of the horizontal part of the aortic arch. In the 22,92% of cases the origin was situated at the middle of the horizontal part of the aortic arch, and in 20,83% of cases the origin was in the superior part of the descending segment of the aortic arch. The angle that forms at the origin the left subclavian artery with the right ventral aspect of the aortic arch, was found between 90-138°. The angle formed between the left subclavian artery and the left common carotid artery had a value between 6-63°. The level of the origin of the left subclavian artery in relation with the vertebral column and the ribs depends of the location of its origin at the level of the aortic arch, its origin being lower situated when the artery detaches itself at the level of the superior part of the descending segment of the arch, corresponding anteriorly to the rib or to the second or third chondrocostal articulation and posteriorly to different levels of the T2 vertebra. When the origin of the artery is situated at the level of the horizontal segment of the aortic arch, it corresponded with the superior segment of the T2 vertebra and more rarely with the T1-T2 intervertebral disc or to the inferior half of the T1 vertebra.
Key words: LEFT SUBCLAVIAN ARTERY, THE ORIGINFull text