Bilateral Variation in the Origin and Course of the Vertebral Artery

<table>1: Origin of left vertebral artery, 2: Level where left vertebral artery enters foramen transversarium, LVA: Left vertebral artery, AA: Arch of aorta, BCT: Brachiocephalic trunk, LCCA: Left common carotid artery, LSCA: Left subclavian artery, C4: Fourth cervical vertebra.</table>

Anatomy Research International

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Figure 1

Figure 1: Bilateral Variation in the Origin and Course of the Vertebral Artery 