This human brain model set consists of 300 parts. Much emphasis is on the inner parts of the brain, brain stem and cerebellum - with all detail in the structures, keeping texturing simple. As are the major crebral blood vessels, the cranial/brain nerves are part of the set, emanating exactly at their right origins. This most elaborate central nervous system available planetwide breaks limits and fits snugly into the skull and other parts of the P1 set.