BIO NMDCAT Neurons

nmdcat.online July 7, 2026

Among the following, the neurotransmitter primarily associated with the body’s ‘fight or flight’ response is

A. Serotonin

B. Gamma-aminobutyric acid (GABA)

C. Norepinephrine

✓

D. Acetylcholine

📝 Explanation

Norepinephrine (and epinephrine from the adrenal medulla) acts on sympathetic target organs to mediate the 'fight or flight' stress responses, such as increased heart rate and bronchodilation.

📖 Additional Information

Serotonin
Gamma-aminobutyric acid (GABA)
Norepinephrine
Acetylcholine

Norepinephrine (and epinephrine from the adrenal medulla) acts on sympathetic target organs to mediate the 'fight or flight' stress responses, such as increased heart rate and bronchodilation.

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