Pharmacology Quiz #11: Acetylcholine Receptors

1. A 68-year-old man with a diagnosis of myasthenia gravis is started on a medication to increase the availability of acetylcholine at the neuromuscular junction. Which of the following types of receptors are primarily involved in the pathophysiology of this patient's condition?

Question 1 of 5

2. A research team is evaluating the effects of a new drug that specifically blocks muscarinic acetylcholine receptors. Which of the following effects would most likely be observed in a patient given this drug? 

Question 2 of 5

3. During a pharmacology lecture, a professor explains the action of curare, a drug that blocks acetylcholine receptors. Curare is known to cause paralysis by acting at which of the following receptor types?

Question 3 of 5

4. A patient presents with symptoms of dry mouth, blurred vision, urinary retention, and constipation. These anticholinergic side effects are most likely mediated through antagonism of which type of receptor?

Question 4 of 5

5. A 24-year-old woman is brought to the emergency department after ingesting a substance found in a poisonous mushroom. She exhibits signs of excessive muscarinic stimulation, including miosis, bradycardia, and excessive salivation. Which of the following receptors is primarily activated by the toxin?

Question 5 of 5


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