In humans, caffeine causes cerebral vasoconstriction and, hence, reduced cerebral blood flow (i.e., reduced blood flow to the brain). This effect is caused by caffeine binding to __________ receptors.

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Physiology Test Question

In humans, caffeine causes cerebral vasoconstriction and, hence, reduced cerebral blood flow (i.e., reduced blood flow to the brain). This effect is caused by caffeine binding to __________ receptors.

	(A) dopamine
	(B) adenosine
	(C) glutamate
	(D) acetylcholine
	(E) serotonin

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Posted: Monday, September 7, 2015
Last updated: Monday, September 7, 2015