You just had a near miss in your car. Your pulse is racing and you notice your pupils are wide open as you look in your rearview mirror. What are part of your autonomic nervous system is activated?

a. peripheral

b. sympathetic

c. parasympathetic

d. myelencephalon

e. neocortex

The correct answer will be option B - sympathetic.

Explanation:

In the given question, the response to a nearby car is achieved via the autonomic nervous system. The autonomic nervous system activates its sympathetic nervous system in response to the stress conditions which the person has faced.

In response to the condition, the post-ganglionic neurons release the nor-adrenaline or norepinephrine which further activates the production of adrenaline from the adrenal cortex. This epinephrine and nor-epinephrine bind to the adrenergic receptors which show fight or flight response like include pupil dilation, increased heart rate, increased blood pressure and sweating.

Thus, option B - sympathetic is the correct answer.