1 Symptoms are due to the effects of excess acetylcholine on nicotinic and muscarinic acetylcholine receptors in the CNS, at neuromuscular junctions, and in the sympathetic, and parasympathetic nervous systems. 2  Nicotinic and muscarinic receptors have different. 3  Functions. 4  Locations.
The reason snake repellents don t work is because there is nothing intimidating to a snake about the smell of naphthalene or sulfur. Even if there were, snakes do not smell the way people traditionally assume they do. Snakes use smell as a method of information.
Fly Repellent Only Works for Flies. Please note that this fly repellent trick only works for flies, not mosquitoes and other insects. It also works very well for flies in the Southern United States. However, it may not work as well for flies from other geographical areas such as blow flies in Australia.