Des Moines Memorial Drive. âIn years to come, when the young men of today are the old men of tomorrow those elms will have come into their full strength and beauty, an ever present reminder of the days when the Americans of the World War marched on French highways.â â Lt. Gov. W. J. âWeeâ Coyle, at the dedication ceremonies, 1922.
Stages of Neural Impulses. Resting potential is the name for the electrical state when a neuron is not actively being signaled. A neuron at resting potential has a membrane with established amounts of sodium (Na+) and potassium (K+) ions on either side, leaving the inside of the neuron negatively charged relative to the outside. The action potential is a rapid change in polarity that moves along the nerve fiber from neuron to neuron.
While the neuron cell is at it's resting potential (at about -70mV), it is constantly receiving weak chemical information from other neurons, but only when these signals push the cell's states over the threshold (about -55mV) will it fire an action potential.