vertebral artery syndrome. cervical spine.

3d anatomy aorta artery arterial systems basilar biology blood blood circulation flow supply bone brain cardiovascular carotid arteries cerebral vascularization cervical vertebrae diagnosis external carotid graphic headache hospital human illustration internal intervertebral intracerebral ischemia ischemic isolated lobes magnetic resonance imaging medical medicine neck neurosurgery orthopedics radiography resonance scan science skeleton spinal spinal cord stenosis cerebellum thrombosis treatment vertebral artery