vertebral-basilar system

ver·te·bral-bas·i·lar sys·tem

the arterial complex comprising the two vertebral arteries joining to form the basilar artery, and their immediate branches.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Later that day, the TCD was performed and revealed severe stenosis in the patient's vertebral-basilar system. Blood flow was diminished in the left vertebral and basilar arteries that supplied the posterior fossa, the superior cerebellar artery off the basilar artery, and the right posterior internal communicating artery off the right vertebral artery.