After researching the causes and symptoms of the following diseases: tetanus, Parkinson’s disease, and multiple sclerosis, construct a 100-150 word essay, addressing each of the following in a separate paragraph:

1. How are neuron firing and muscular control related to these diseases?
2. Why is it important that neuronsnot repeatedly fire?

• Cite all sources of information used in your essay appropriately.  Do NOT use reference-type websites (e.g., Wikipedia) or internet blogs as information sources