A person may feel more relaxed after smoking a cigarette, but his or her heart is actually stressed. Why?
A) Maintenance neurons are being activated by the nicotine, which directs maintenance neurotransmitters to instead activate stress neurons.
B) The relaxed feeling is more psychosomatic rather than being based upon some neurochemical response.
C) Stress neurons are over-firing to make up for nicotine's inhibition of acetylcholine.
D) The relaxed feeling arises only after the stimulated muscles rebound from a point of fatigue generated by the inhibition of acetylcholine.
Correct Answer:
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