This model facilitates the students to get a correct understanding of the external features of the brain and its arterial supply as a whole, as well as the relations between their component portions. External features of the brain : cerebral hemisphere, brain stem, cerebellum. The arterial supply of the brain : Sources, vertebral, internal carotid arteries, arterial supply of the cerebellum and cerebrum. Made of PVC and can be separated into 8 parts. On base. Natural size.