Should be double spaced and the answer should be limited to 750 words. Please do not copy from any other literature. Do not quote or copy entire sentences, but rephrase the ideas in your own words and give proper references. Again please follow these rules. You can use "From neuron to brain" by nicholls 5th edition textbook. An article that also can help is Bean B.P., "The action potential in mammalian central neurons". This is a neurobiology class.