- How synaptic transmission works and what model we are using? - What ion channel models are we using or want to use? - Gap junctions - Chemical synaptic channels - What are the passive properties (capacitance, resistivity)? - Breakdown of the kinds of neurons that are known (different classes) - Morphologies - Rough functional description - What ion channels are in which neurons? - What aspects are in the model and what aspects are not in the model?