1. Cervical part - arises from first part of subclavian artery (left vertebral artery can come off aorta directly) 2. Vertebral part - goes thru transverse foramina of C1-6 3. Suboccipital part - enters cranial cavity thru foramen magnum and pierces posterior altanto-occipital membrane 4. Cranial part
What does the cranial part of the vertebral artery supply?