nervous system 3d model

I need only the nervous system with the brain the spinal cord the nerves anf be careful make the 3d as it is and not fake make the brain as it is with the structures it has etc.and also do not put other systems such as the muscular or the bone system etc only the nervous in the shape thaht it stays in a human body make the spinal cord longer as it is and maek also the nerves where thy are in a human body something like thus .make the things as they are in the human body but only the nerovus system