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This Concept Map, created with IHMC CmapTools, has information related to: ElectricalPropertiesAxonsDendrites, tau: rm*C ???? temporal summation, Electrical Propagation in axons and dendrites ???? Dendrites, TTX ???? TTX blocks voltage-gated sodium channels, Resistance ???? tau: rm*C, Blocking outward K+ current that is necessary for propogation ???? AP propogation requires functioning Na+ and K+ channels for propogation, Electrical Propagation in axons and dendrites ???? Techniques, small ???? high input resistance low capacitance, Techniques ???? TTX, TTX Patch Clamp Technique Hill won Nobel Prize: insight into propogation of AP, Dendrites ???? current spread complicated by branching, Resistance ???? Membrane, Dendrites ???? small, Resistance ???? Internal, TTX blocks voltage-gated sodium channels ???? Block of inward Na current necessary for propogation, Capacitance ???? lipid bilayer: insulator, Passive Electrical Properties ???? Capacitance, Capacitance ???? Myelination: increase rm decrases c thus, lambda inceases tau increase, Dendrites ???? channel density increases closer to the end of the dendrite, lambda if lambda increases spatial summation, Capacitance ???? tau: rm*C