Jason's biology - 2

Jason Voorhees was the name for the consciousness inside the killer in the dark, and this consciousness was not confined to a single, specialized area. Consciousness, along with memory, emotions, and intent, ran through his entire body like an electric current, so that there was no central point of vulnerability. there was no heart to stop, no brain to splatter, and that black fluid that sprayed or splashed or oozed from wounds was nothing remotely like blood.

Jason X (novel) - pg. 232