Action Potentials Figure 12.13a
{"Image DocumentName": "Action Potentials Figure 12.13a", "Image ImageDescription": "only a thin layer of the cytoplasm next to the cell membrane is affected. in reality, very few ions are involved. action potential is often called a spike \u2013 happens so fast. characteristics of action potential versus a local potential. follows an all-or-none law. if threshold is reached, neuron fires at its maximum voltage. if threshold is not reached it does not fire. nondecremental - do not get weaker with distance. irreversible - once started goes to completion and can not be stopped. Copyright \u00a9 The McGraw-Hill Companies, Inc. Permission required for reproduction or display Depolarization. Repolarization. Action. potential. mV. Threshold. 2. \u201355. Local. potential \u201370. Resting membrane. potential. 6. Hyperpolarization. Time. (a) Figure 12.13a.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}