Anatomical Analysis of Human Posterior Brain Circulation

This report describes the branches of the vertebral artery and the basilar artery, as well as the principal blood vessels of the vestibular nucleus. We studied 27 human brains (17 male, 10 female) using a radiographic three-dimensio-nal method to examine arteries fixed with embalming fluid in the Department of Anatomy of Kawasaki Medical School.The results were as follows:1. The perforating branches in the brain stem were pontine branches from the basilar artery and small branches from the anterior inferior cerebellar artery, posterior inferior cerebellar artery.2. It is thought that the vestibular nucleus is supplied by these blood vessels.