A patient injected a food and experiences cardiac failure due to lack of contrac

Question

A patient injected a food and experiences cardiac failure due to lack of contraction as well as spasm of skeletal muscle. Preliminary examination reveals that this food contains a poison that affects the cholinergic pathway. Which of the following best explains the symptoms of the patient? This poison may affect the mAChR. This poison may affect the nAChR. This poison may affect cholinergic neurons This poison may interfere with the production of ACh A. B. C. D. (3 points) Is this poison an agonist or antagonist? Explain.

Explanation / Answer

Ans

A

The posion may affect the mAChR.

The poison is antagonist to muscarinic type of acetyl choline receptors.

Because cardiac muscle and skeletal muscle contraction is done by acetyl choline and receptors involved are muscarinic type.

So the poison blocks the muscarinic receptors.

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