Finding that smoking a second cigarette did increase heart like the first cigarette smoke earlier did is an example of which pharmacological effect?
A) Receptor desensitization
B) Behavioral tolerance
C) Acute tolerance.
D) Activation of the parasympathetic nervous system.

Question

Quizplus · Accepted Answer

Acute tolerance refers to the phenomenon where the effects of a drug diminish rapidly with repeated use, often within the same session. In this case, smoking a second cigarette did not produce the same level of heart rate increase as the first cigarette, indicating the development of acute tolerance. Receptor desensitization involves a gradual decrease in responsiveness of target receptors with prolonged exposure to a drug, while behavioral tolerance refers to the ability to actively compensate for the effects of a drug, such as learning to perform certain tasks while under the influence. Activation of the parasympathetic nervous system would actually decrease heart rate, which is opposite to the observed effect in this scenario.

Finding That Smoking a Second Cigarette Did Increase Heart Like