Propagation of Action Potential

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Video Summary:
Action potential at any region brings the voltage to the threshold in the nearby region. So voltage-gated Na channels open and action potential is generated in that area also. In this way, the action potential spreads in all directions away from the point of stimulus. Its amplitude remains the same as it spreads. In myelinated fiber, the axon is insulated by Schwann cells or oligodendrocytes. They have uncovered areas at regular intervals called nodes of Ranvier. Here the action potential jumps from node to node. It's called saltatory conduction and it's fast and energy-efficient.
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Chapters
00:00 Introduction
00:14 Propagation in Unmyelinated Neuron
02:06 Myelination
02:44 Saltatory Conduction in Myelinated Neuron
03:57 Advantages of Saltatory Condution
05:16 Summary
Dr Vipul Navadiya
DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.