neurophilosophy: "Trepanation, or trephination (both derived from the Greek word trypanon, meaning “to bore”) is perhaps the oldest form of neurosurgery. The procedure, which is called a craniotomy in medical terminology, involves the removal of a piece of bone from the skull." Read on
neurophilosophy: "Trepanation, or trephination (both derived from the Greek word trypanon, meaning “to bore”) is perhaps the oldest form of neurosurgery. The procedure, which is called a craniotomy in medical terminology, involves the removal of a piece of bone from the skull." 
