What is a Neurotoxin?
A neurotoxin is a substance which inhibits the functions of neurons. Neurons are found throughout the brain and nervous system, and the function of these unique cells is critical for a variety of tasks, ranging from autonomic nervous system jobs like swallowing to higher-level brain function. Neurotoxins can work in a variety of ways, with the danger of exposure varying, depending on the neurotoxin involved and the dosage. In some cases, neurotoxins simply severely damage neurons so that they cannot function. Others attack the signaling capability of neurons, by blocking releases of various chemicals or interfering with the methods of reception for such transmissions, and sometimes telling neurons to send false signals. A neurotoxin may also destroy neurons altogether. The body actually generates some neurotoxins; many of the neurotransmitters produced to send messages across the nervous system can be dangerous in high amounts, for example, and sometimes the body produces neurotoxins a