Question

All of the following occur during a stress response EXCEPT?

1) the parasympathetic branch of the autonomic nervous system is activated.
2) norepinephrine is released as a neurotransmitter in the brain.
3) glucose is made available for energy due to the effects of epinephrine.
4) an increased output of the heart increases blood flow to the muscles.
5) the adrenal gland releases steroid hormones.

Answer 1

In the context of a stress response, the parasympathetic nervous system's activation is the exception as it is the sympathetic nervous system that is activated to manage stress via the release of hormones

Step-by-step explanation:

The question asks about what does not occur during a stress response. Option 1 states the parasympathetic branch of the autonomic nervous system is activated which is indeed the exception.

During a stress response, it is actually the sympathetic nervous system that is activated to prepare the body for a fight-or-flight response, not the parasympathetic system.

which is more associated with rest and digestion. The activation of the sympathetic nervous system results in the release of epinephrine and norepinephrine from the adrenal medulla.

which increases heart rate, blood flow to muscles, blood glucose levels, and releases steroid hormones such as cortisol to help manage stress.

In contrast, the parasympathetic nervous system conserves energy and is often considered the 'rest and digest' system.