Action Potential

Video Description

Join the Amoeba Sisters as they explore the action potential. This video discusses resting membrane potential before going into the phases of the action potential including vocabulary such as depolarization, repolarization, and hyperpolarization. The video also mentions different types of gated ion channels and how the action potential can be propagated. Cell Signaling Video: https://youtu.be/-dbRterutHY?feature=shared Sodium Potassium Pump Video: https://youtu.be/7NY6XdPBhxo?feature=shared Table of Contents: 00:00 Intro 0:47 Excitable Cells 1:23 Ions and Travel Across Membrane 1:42 Sodium Potassium Pump 2:43 Leak Channels 3:26 Membrane Potential 4:17 Action Potential Walkthrough 7:23 Initiation and Different Gated Ion Channels 9:07 Action Potential Propagation (in Neuron) FACTUAL REFERENCES: Abdelsayed, Mena, and Stanislav Sokolov. “Voltage-Gated Sodium Channels.” Channels, vol. 7, no. 3, 19 May 2013, pp. 146–152, https://doi.org/10.4161/chan.24380. Betts, J. Gordon, et al. “12.4 the Action Potential - Anatomy and Physiology 2e | OpenStax.” Openstax.org, 20 Apr. 2022, openstax.org/books/anatomy-and-physiology-2e/pages/12-4-the-action-potential. Urry, Lisa A, et al. Campbell Biology. 11th ed., New York, Ny, Pearson Education, Inc, 2017. Zedalis, Julianne, and John Eggebrecht. “26.2 How Neurons Communicate - Biology for AP® Courses | OpenStax.” Openstax.org, 8 Mar. 2018, openstax.org/books/biology-ap-courses/pages/26-2-how-neurons-communicate. FURTHER READING: More about epilepsy and medications for this condition that can target ion channels: https://www.cdc.gov/epilepsy/index.html https://pmc.ncbi.nlm.nih.gov/articles/PMC1852436/ https://pubmed.ncbi.nlm.nih.gov/20298965/ What about action potential in myelinated neurons? https://www.nature.com/scitable/topicpage/myelin-a-specialized-membrane-for-cell-communication-14367205/ ----------------------------------------------- The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. Learn more about our videos here: https://www.amoebasisters.com/our-videos ⭐ Our Linktree: https://linktr.ee/amoebasisters ❤️ Support Us? https://www.amoebasisters.com/support-us 🗂️ Resources that complement our videos! https://docs.google.com/spreadsheets/d/1b3kmAzFEjWgoMKCrkeNCKFYunWk04IuLY93jI4OY0gY/pubhtml Biology Video Playlist: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz TIPS FOR VIEWING EDU YOUTUBE VIDEOS: Want to learn tips for viewing edu YouTube videos including changing the speed, language, viewing the transcript, etc? https://www.amoebasisters.com/pinkys-ed-tech-favorites/10-youtube-tips-from-an-edu-youtuber-duo MUSIC: Our intro music designed and performed by Jeremiah Cheshire. End music in this video is listed free to use/no attribution required from the YouTube audio library. TRANSLATIONS: https://www.amoebasisters.com/pinkys-ed-tech-favorites/community-contributed-subtitles