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PhysioEx 8.0 Ex. 6 Activity 6 Help

redsoxgrl

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12 years ago

PhysioEx 8.0 Ex. 6 Activity 6 Help

Hey everyone,

I was wondering if anyone could help me with a few questions on Exercise 6: Frog Cardiovascular Physiology, Activity 6: Assessing the Effect of Atropine.

4)
Atropine is a drug that blocks the effect of the neurotransmitter acetylcholine, liberated by the parasympathetic nerve endings. Do your results accurately reflect this effect of atropine?

Are Pilocarpine and atropine agonists or antagonists with respect to each other in their effects on heart activity?

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duddy

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Staff Member

12 years ago

pilocarpine: decreases heart rate; mimics acetylcholine

atropine: increases heart rate; inhibits acetylcholine

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