5 Good Reasons to have a Personal Trainer. 1  Mix It Up with Cross Training. 2  Teaching vs. Showing. 3  Set-A-Pace. 4  Turn Weaknesses Into Strengths. 5  Accountability.
The vertebral artery is a major artery of the neck that passes through the cervical vertebrae. There are two vertebral arteries, one on each side, and each branches off from the subclavian artery. They merge to form the single basilar artery at the base of the brain.
It supplies blood to all parts of the body with the exception of the lungs. The aorta ascends from the heart and forms an arch, from which arise two subclavian arteries. Each subclavian has two main branches, the common carotid and the vertebral. Both of these carry blood to the brain. Each common carotid divides into an external carotid artery, which supplies blood to the face and an internal carotid artery which supplies the brain with blood.