The Action Potential

In this video Paul Andersen details the action potential in neurons. The resting potential of a neuron (-70mV) is maintained through differences in concentration and permeability of Na, K, and Cl ions. A graded potential is created as neurotransmitters from adjacent cells that are either excitatory or inhibitory. If the neuron reaches the threshold of -55mV an opening of voltage-gated sodium channels triggers an action potential that may affect other connected neurons. PhET neuron simulation - Music Attribution Intro Title: Artist: CosmicD Link to sound: Creative Commons Atribution License Outro Title: String Theory Artist: Herman Jolly All of the images are licensed under creative commons and public domain licensing: 1280px-Muscle_Tissue_(1). (1280×960). (n.d.). Retrieved December 13, 2016, from