My dad is a neurologist. He’s a specialist in the nervous system. Paraphrasing from google may get you some free karma, but it can never explain why your ignorance in common sense situations is so astounding. Look up “neural system”. It brings up the term “nervous system”. I’m not sure why you went into the etymology of the word “system”, either, it’s irrelevant. Additionally, “Funny meme!”? This meme may have been created by OP, but I’ve seen the verbatim caption with the exact picture of Dr. Phil probably 4-5 times in the last day. I guess OP “doing good” is as correct of an evaluation as saying “you’re wrong” to me.