Which plants are neurotoxicants with anticholinergic effects?

Get ready for the ACVPM Toxicology Exam with our comprehensive quiz. Enhance your knowledge with multiple-choice questions and detailed explanations. Prepare effectively for your certification exam!

Multiple Choice

Which plants are neurotoxicants with anticholinergic effects?

Explanation:
Anticholinergic toxicity from plants comes from tropane alkaloids (such as atropine, scopolamine, and hyoscyamine) that block muscarinic receptors, producing delirium, dry skin and mucous membranes, dilated pupils, tachycardia, and urinary retention. The plants that are classic neurotoxicants with these anticholinergic effects are Jimson weed (Datura), angel’s trumpet (Brugmansia), belladonna, and deadly nightshade. They all contain tropane alkaloids and are well known for causing the characteristic anticholinergic syndrome. Cannabis and Isocoma do not produce their toxic effects via this same anticholinergic mechanism, and while potato and black nightshade contain other alkaloids, their toxicity is not driven by muscarinic receptor blockade.

Anticholinergic toxicity from plants comes from tropane alkaloids (such as atropine, scopolamine, and hyoscyamine) that block muscarinic receptors, producing delirium, dry skin and mucous membranes, dilated pupils, tachycardia, and urinary retention.

The plants that are classic neurotoxicants with these anticholinergic effects are Jimson weed (Datura), angel’s trumpet (Brugmansia), belladonna, and deadly nightshade. They all contain tropane alkaloids and are well known for causing the characteristic anticholinergic syndrome.

Cannabis and Isocoma do not produce their toxic effects via this same anticholinergic mechanism, and while potato and black nightshade contain other alkaloids, their toxicity is not driven by muscarinic receptor blockade.

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