wow you deserve the Nobel prize for most clear understanding of an action potential.

OMG SALTY BANANA!!!!!!!!!!!!!!!!!!!!!!!!!! I literally constantly forget what’s high on the inside and what’s high on the outside. Now I’ll never forget. Thank you!

geniunely this is the best video I've seen on action potential. You made it so simple and I really appreciate that.

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After years of reading AP over and and over, watching multiple videos, making notes for 1000th time.. this video finally taught AP without having to mug up😭😭🙌🏼🙌🏼

I'm a first year uni student and I've been looking for videos explaining this concept. This was perfect and really easy to grasp, you just gained a new subscriber. thank you

Amazing Teacher, honestly not only did I learn more about Neurons but I also learned how to teach in a more clear fashion by watching how you explain things

wow I was so confused on action potential and you made it so clear and understanding without using so much terminology! Thank you!!!!!!!!!!!

Yo I don't know if you still make videos but keep it up! I'm taking AP Psychology right now and you have hands down the clearest and most thorough explanations I have seen yet. It hits that sweet spot between simple to understand and complex enough to contain all necessary detail. Thank you and I would really appreciate if you were to post more.

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The best video i have seen so far on action potential thank you so much.

I have been trying to understand AP for a year and I finally do now thanks to this video!!! Thank you!!!

This video is life-changing 😊! Thanks so much for the detailed drawing and steps!

Thank you for the very well put explanation. The only thing, however, you didn't mention was the sodium-potassium pump, which is what allows the neuron to return to the resting stage after being hyperpolarized!

In physio psychology introductory class best explanation I have ever seen

Fantastique! = +-+-+-+-+-+- ... I recently learned that due to a violent upbringing I have premature myelination and four other premature stuff that went on at a microscopic level within me. I was left with axons looking as if they were pumped up on steroids due to development adaptation. This vid has just given the nitty gritty to my external potential. Look out bad world, the Hulk lives. THANK YOU Doc.

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Thank you very much, this is the best video and I now understand the action potential

Wow!! I love the way you teach. Thank you so much for making this seem so easily to understand. I subscribed to your channel.

Again thanks so much for the detailed yet not overcomplicated explanations. The visuals really help me relate math and science together something I normally struggle with a lot.

Your video in 1.25 speed was the best explanation of this process! Thank you

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I went over this topic in my psychology book over and over and over and jus couldn't get it. 12minutes after watching this and I finally understood!! thank you so much

confused myself over the slides for an hour and learned in your video within 12 mins. nice job mahn

Thanks you You made this easy . First time to understand it

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thankx finally somone explained what cause the hypopolarization .

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beter than 2 hrs lecture of my teacher

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Whatt a great explanation finally i understand action potential just one question that in the end after hyperpolarisation do the sodium ions also go back out of the neuron??

Thank u soooo match 🩷

Please make videos on sensation and perception.

Your drawing got way better

You real for this

thank you lord for this video. everyone else just rushes through it

This is genius !!

you teach in a brilliant manner :] ...but i have a question when the potassium ions move out and the neuron comes to a polarised state how does it fire again ? how does the potassium ion re-enter or are present in the neuron nd its at negative 70 again ?

🎯 Key Takeaways for quick navigation: 00:31 *🧠 Understanding Action Potential* - Action potential defined as a brief electrical charge traveling down a neuron. - Neuron anatomy overview: soma, dendrites, axon, axon terminal. - Importance of action potential in neuron communication. 02:23 *🧪 Ion Concentration and Neuronal Resting State* - Neurons surrounded by ions: sodium and potassium. - Resting potential of a neuron at -70 millivolts. - Explanation of the "salty banana" memory technique. 04:01 *⚡️ Excitation and Binding of Neurotransmitters* - Excitation of neurons by stimuli like neurotransmitters. - Role of acetylcholine in binding to receptor sites on dendrites. - Opening of channels for sodium influx upon binding. 06:05 *🎇 Threshold and Action Potential Initiation* - Explanation of the neuron's firing threshold at -55 millivolts. - All-or-none principle: neuron fires when threshold reached. - Activation of voltage-gated sodium channels for action potential initiation. 07:54 *🔥 Depolarization Phase* - Depolarization: neuron becoming more positive. - Sodium influx leading to increased positivity inside the neuron. - Voltage change triggers the action potential. 10:04 *⏳ Repolarization and Hyperpolarization* - Repolarization phase: closure of sodium channels, opening of potassium channels. - Potassium efflux causing the neuron to return to negative polarity. - Hyperpolarization and refractory period before returning to resting potential. Made with HARPA AI

DR.KUSH

Why is the voltage at -70 inside at the start? If potassium is positive, what else is in the neuron that's so negative? Great video btw, thank you!

Sir yor explanation of the action potential was very good, but you did not explain how the amount of sodium on the outside and potassium on the inside return to normal.

How don't we have only Na+ inside after several times the nerve is in action? Should be nun out of K+ and only have Na+ left inside the neurone??

So, the transmission of the action potential is like an electric canon

Thanks, good explination! But what happens afterward because this time all the K+ is outside and Na+ is inside. The normal position was the opposite (K+ were inside and Na+ were outside).

Cool

And how does the potassium come back in and the sodium leave to go back to original resting potential? That bit wasn't mentioned. It sounds like in the end, the charge might be the same, but with hardly any K+ And lots of Na+ compared to first charge

Sir you explained really well but Kindly tell me why chloride ions didn't play that much role in action potential though they are also present in this process? kindly Explain.

How you get awareness out of this unconscious matter ?

Is the Refractory period part of the repolorization?

Can I ask how sodium potassium pump plays in action potential? Thanks thanks.