Problem: Differentiate between the anatomical basis and the chemical basis of neurotransmission. Describe the process of communication between the central nervous system neurons at the cellular level. Identify the structures of a neuron. Discuss the process of how genes are activated and silenced in Epigenetics. Describe how epigenetic mechanisms are executed and what structures in the cell play a role. Discuss why some neurotransmitters are similar to drugs and are known as "God's pharmacopeia". Differentiate between the following types of neurotransmissions: classic, retrograde, volume, signal transduction cascade. Need Assignment Help?