The nervous system is what i'd say. Are there any options?
Throat. it’s basically the only one that makes sense
In it they stated that the United States Constitution would grant a competent person a constitutionally protected right to refuse<span> life-saving </span>medical treatment<span> Whether for financial, spiritual or religious reasons, a </span>patient has<span> the ultimate say over what is done to his or her body.</span>
I think you will find carbon, nitrogen, hydrogen, and oxygen.
