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Physiology of Vision and the Eye

question 1 of 18 course: Medicine(Degree)
question 1 of 18 course: Medicine(Degree)

Q: In the retina: A photoreceptor is inhibited by its specific stimulus.

Did You Know?

Atropine is a muscarinic antagonist that blocks parasympathetic tone on the heart. Normally, norepinephrine-induced hypertension triggers a reflex increase in vagal tone (bradycardia). Atropine blocks this reflex bradycardia, unmasking a direct or mild reflex tachycardia.

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Atropine is a muscarinic antagonist that blocks parasympathetic tone on the heart. Normally, norepinephrine-induced hypertension triggers a reflex increase in vagal tone (bradycardia). Atropine blocks this reflex bradycardia, unmasking a direct or mild reflex tachycardia.

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