| − | '''Adrenergic''' is a descriptive term for the nerve cells that use [[adrenaline]] and [[noradrenaline]] as chemical transmitters. The [[sympathetic nervous system]] is an adrenergic system. | + | '''Adrenergic''' is a descriptive term for the nerve cells that use [[adrenaline]] and [[noradrenaline]] as chemical transmitters. The [[sympathetic nervous system]] is an adrenergic system.<ref>Abnormal Psychology, Rosenhan & Seligman, 1984</ref> |