LMAO yeah I guess cept your life and quality of life is in the balance. No the name thats on there is the one the docs will call. That person will have a copy of your will and will show up at the hospital saying "here I am heres proof that I am the executor (theres some legal stuff involved so look it up) and heres the will. I will take over the decisions from here." Only comes into play when you can't. Coma or on life support, mental state compromised, etc. This is something agreed upon by you and that person before you put their name down.
Only reason my name is there is my uncle thinks he might have a hard time taking my mom off life support should he need to and both he and my mom agreed to put another name down so that if he can't then I will. She knows I will respect her wishes no matter how hard it is.