Function of the Axon Hillock. The axon hillock is a unique area within neurons because of its ability to process the incoming signals from other cells. To understand how this works, let's look at what a chemical impulse really is.
Permethrin is an active-ingredient insecticide used in many professional pest-control products to control a wide variety of pests, including ticks, fleas, mosquitoes, bedbugs, chiggers, flies, termites, and cockroaches. Permethrin is often used as a spray on fabrics, clothing, and bed nets to repel or kill insects.
One of the simplest and most effective flea repellents are eucalyptus leaves. For some reason fleas are averse to their smell. Bathing your dog in a mixture of 2 cups of water and a lemon or lime sliced thinly also helps keep off fleas and, like the eucalyptus leaves, smells good.