Utah Special Function Officer (SFO) Practice Exam

Which of the following is NOT a trigger that activates the sympathetic nervous system (SNS)?

1. Threat in close proximity

2. Fear

3. Contentment

4. Startle response

The correct answer is: Contentment

Contentment is the correct choice because it is associated with a state of relaxation and calmness, which activates the parasympathetic nervous system rather than the sympathetic nervous system (SNS). The SNS is responsible for preparing the body for 'fight or flight' responses, which are activated by situations that induce stress or require a quick reaction. In contrast, threats in close proximity, fear, and the startle response are all stimuli that provoke a heightened state of alertness and readiness. These triggers activate the SNS to initiate physiological changes such as increased heart rate, heightened awareness, and adrenaline release, preparing the body to respond to danger. Therefore, contentment does not activate the SNS, making it the only option that does not fit within the context of triggers associated with the activation of the sympathetic nervous system.