alleryThe 'fight-or-flight' response is primarily mediated by the:
ASympathetic nervous system + norepinephrine
BParasympathetic nervous system + acetylcholine
CEnteric nervous system + serotonin
DSomatic nervous system + dopamine
Answer & Solution
Correct answer: A. Sympathetic nervous system + norepinephrine
**SYMPATHETIC ANS releases norepinephrine:** ↑ heart rate, dilates pupils, breaks down glycogen, dilates bronchi, inhibits digestion.
Prepares body for 'fight or flight'.
**PARASYMPATHETIC:** opposite, 'rest + digest'.
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