Caffeine's antagonism of both _______ and _______ receptors, especially in the striatum, is important in the arousing and activating effects of the drug.

Question

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Caffeine's antagonism of both adenosine A1 and A2A receptors, especially in the striatum, is important in the arousing and activating effects of the drug. Choice A and D both include receptor types that do not have any known connection to caffeine's effects. Choice B only includes the A2A receptor, but not the A1 receptor which is also involved. Therefore, choice C is the best option as it includes both A1 and A2A receptors which are important in caffeine's effects.

Caffeine's Antagonism of Both _______ and _______ Receptors, Especially in the Striatum

Caffeine's Antagonism of Both _ and _ Receptors, Especially in the Striatum