@@Jaymjkyou that lecturer ? Don't worry i don't understand this video either , but i have watched 10 min video explaining same thing . I liked 10 min video better , but this one saves time and serves same purpose for defining "Action potential" (I am sure those kids got bored in 2-3 hours long classes so they hate it . )
Please keep in mind that the ion flow across the membrane occurs only at the nodes of Ranvier. Nodes of Ranvier interrupt the insulation at intervals and this discontinuity enables impulses to jump from node to node. So although the general mechanism described in this video is correct, the location of ion flow is not. Also, the resting membrane potential and electrochemical gradients are restored not only by the sodium-potassium pump, but also potassium leak channels and sodium leak channels which are always open.
Guys those 4 weeks made it easy for you to understand all this ... You can't just watch a 3 min video and learn everything from it 🤟 THOSE LECTURES MATTER BUT NOT THE WHOLE 3 HOUR BORING LECTURE 😩
@@parkourisart9651 nope. didn't touch my lecture at all and started doing my lectures right before my exam, didn't understand. pulled up this video and instantly understood. this 3 minute video won vs 1 week of teaching
I have spent ages trying to understand action potentials, this video is the best explanation I have found and really helped me understand FINALLY!!! Thank you so much
THIS IS THE BEST VIDEO TO UNDERSTAND ACTION POTENTIAL. I HATED THIS TOPIC BECAUSE I COULDN'T UNDERSTAND IT EVEN AFTER WATCHING MULTIPLE LECTURES. THANK YOU FOR THIS MAN !
Oh god man you’re saint, I love you. I’m currently preparing for my biochemistry midterm and my mind was such a mess after reading about ion channels and you’ve explained everything in 3 minutes better than anyone else. Thank you!
The Sodium/Potassium Pump is always working towards make the inside of the cell more negative then the outside of the cell by pumping more +Ions out of the cell (3 Na) then in (2 K). So to say that the pump returns the state of the cell from hyperpolarization to the normal resting potential would be wrong, because the hyperpolarization level of the cell is more negative then the resting potential. This means the Sodium/Potassium Pump would make the charge of the cell in hyperpolarization state more negative and not more positive (which would be needed to reach the normal action potential). What returns the cell from hyperpolarization state to resting potential are the leaky channels who will allow Ions to move acrossed the membranes. Once the -70mV is reached by the leakage, the Sodium/Potassium pump will then maintain the equilibrium of -70mV by counteracting the leaking of the ions....
Interesting.. I know I'm pretty late but I'll say this anyways.. after action potential occurs, the ratio of the concentration of sodium to potassium is unbalanced because of the efflux of potassium and closure of sodium gated channels. To counter this, Na/K pump pumps out (3 Na) and then in (2 K).
The first step of repolrization is closing the Na channels then opening the K channels...not opening K channels immediately as you mentioned... Just a small note... Great video 👏👏
Please do not confuse people by saying an action potential is not an "electrical current." Rather you may want to specify that it is an "electrical signal." This is how it has been taught throughout history and is also accurate.
I think that returning to resting state after hyperpolarisation is not explained well here. It's not the slow closing of the potassium channels that causes it (it would only cause more hyperpolarisation) nor the sodium-potassium pump (as many online sources say) because it would also cause only more negative potential. The potassium leak channels allow extra potassium out of the cell and are the reason for the return to resting state after hyperpolarisation.
I understood better in this short time than the 2 hour lecture from my professor. Thank you for this video
Same same😁😁
Stop insulting others....one or other is always better...
How about paying attention during those 2 hrs?
@snicklefritz2719 real
@@Jaymjkyou that lecturer ?
Don't worry i don't understand this video either , but i have watched 10 min video explaining same thing .
I liked 10 min video better , but this one saves time and serves same purpose for defining "Action potential"
(I am sure those kids got bored in 2-3 hours long classes so they hate it . )
Please keep in mind that the ion flow across the membrane occurs only at the nodes of Ranvier. Nodes of Ranvier interrupt the insulation at intervals and this discontinuity enables impulses to jump from node to node. So although the general mechanism described in this video is correct, the location of ion flow is not.
Also, the resting membrane potential and electrochemical gradients are restored not only by the sodium-potassium pump, but also potassium leak channels and sodium leak channels which are always open.
So would it happen right after the dendrites and then shoot all the way to the other end when threshold is reached?
💯 MORE VIDEOS PLEASE 💯
Can you pin this comment please?
Wow... 4 weeks into the semester and 3:24 minutes explained what I thought was hard to understand lol... Thanks for this
you are not kidding lol same dude !!!
Guys those 4 weeks made it easy for you to understand all this ... You can't just watch a 3 min video and learn everything from it 🤟 THOSE LECTURES MATTER BUT NOT THE WHOLE 3 HOUR BORING LECTURE 😩
@@parkourisart9651 nope. didn't touch my lecture at all and started doing my lectures right before my exam, didn't understand. pulled up this video and instantly understood. this 3 minute video won vs 1 week of teaching
a whole year trying to find someone that can explain this to me. Thanks a lot you made it easy and concise.
I am a pharmacy student from Iraq. Can you teach me how to read?
best explanation I ever listened in life about neuron action potential.
hahaha what the f!ck, I HAD A 2 HOUR LECTURE ON THIS AND THIS ABSOLUTE BOSSMAN HAS JUST SLAPPED IT UP IN 3 MINS.
good job sir!
True mam ✨
i have an exam later, checked this for a brief review and this made me understand the topic more. thanks
I have spent ages trying to understand action potentials, this video is the best explanation I have found and really helped me understand FINALLY!!! Thank you so much
I am a pharmacy student from Iraq. Can you teach me how to read?
3 mins. lecturer 3 hours
FACTS!!!
Too true! 😂
And made zero sense 🙃
Speed pharmacology dude
@@zainabalazzawi7714
Do you feel the NEED FOR SPEED ?????????
THIS IS THE BEST VIDEO TO UNDERSTAND ACTION POTENTIAL.
I HATED THIS TOPIC BECAUSE I COULDN'T UNDERSTAND IT EVEN AFTER WATCHING MULTIPLE LECTURES.
THANK YOU FOR THIS MAN !
I have looked at so many videos, this is by far the BEST one I've watched. Thank you!
Yo mans just cleared the topic in 3 minutes, legend.
Oh god man you’re saint, I love you. I’m currently preparing for my biochemistry midterm and my mind was such a mess after reading about ion channels and you’ve explained everything in 3 minutes better than anyone else. Thank you!
I am amazed at how concise this was! Thank you.
I am a pharmacy student from Iraq. Can you teach me how to read?
thank you for the simplest explanation ever
The Sodium/Potassium Pump is always working towards make the inside of the cell more negative then the outside of the cell by pumping more +Ions out of the cell (3 Na) then in (2 K). So to say that the pump returns the state of the cell from hyperpolarization to the normal resting potential would be wrong, because the hyperpolarization level of the cell is more negative then the resting potential. This means the Sodium/Potassium Pump would make the charge of the cell in hyperpolarization state more negative and not more positive (which would be needed to reach the normal action potential). What returns the cell from hyperpolarization state to resting potential are the leaky channels who will allow Ions to move acrossed the membranes. Once the -70mV is reached by the leakage, the Sodium/Potassium pump will then maintain the equilibrium of -70mV by counteracting the leaking of the ions....
Interesting.. I know I'm pretty late but I'll say this anyways.. after action potential occurs, the ratio of the concentration of sodium to potassium is unbalanced because of the efflux of potassium and closure of sodium gated channels. To counter this, Na/K pump pumps out (3 Na) and then in (2 K).
Finally I understood the AP for the first time in my life 😮😍😍😍
Thank you 🌹 🌹🌹🌹🌹
Best Explanation ever. simple. clear and straight to the point ❤
This was so great, hours of zoom lectures plus super long chapters were all wrapped up in this short video!!
you should be hired by harvard, you're a pro in teaching
This is the most beautiful explanation in the planet.
Sir, you're doing a very great job, as a student I'm very satisfied and so clear.
the best video on this subject that i've found on youtube!!
This is the best explanation i have come across! Thank you so much
Definitely one of the easiest way to learn about AP!!
THISSS HELPED ME SOO MUCHHHH 😭
You just earned a new sub, love it when people make things simple and direct.
That was awesome, thank you
this is saving my AP psychology mark thank youuu
this really helped omg
best explanation on the internet! thanks
Simply incredible. 4-week course in 3 min , imagine if you were the teacher and had more time.....
Thank you Mr
The first step of repolrization is closing the Na channels then opening the K channels...not opening K channels immediately as you mentioned... Just a small note... Great video 👏👏
This is best explanation ever!!!
Thank you for making this subject more easy to understand.
thank you so much for this
this was the clearest and best explanation i have seen yet, thank you :)
You really made it wicked easy to understand 😜
11th grader here and can't be more grateful, I didn't understand a word of this particular topic at school
Thank-you so much❤️
Hi Mr. Morelli please extend our research paper
Fr Mr Morelli please
i need more time Mr Morelli
Best video I have seen on this topic yet! Thank you!
I have my exam tomorrow and this video literally connected all the dots for me, thank you!!
good video. One small point... the Na+ and K+ gates are in the nodes region not under the Shwann Cells.
best video i have ever seen for action potential , thank you so much
Thank you - much easier to understand now.
Thank you so much 🙏
wow i actually understood that! thank you for explaining it alongside the graph cause it really helped.
Universities: give me your money and here’s 3 hours of lectures
This guy:
Literally the best explanation ever!
Thank you for this short and super simple explanation. You are a saviour ❤️
this was wicked easy to understand. bravo!
Wahh what a lecture. Great professor. Thanks for the video.
Everything he say is gold!
THANK YOU!
You made it simple and easy to understand!
After so many videos, yours was the easiest to understand.. Thank you so much
Great video! Finally someone explains it in a language I can understand!
I would say finally someone explains it...
I know, right? Was looking for an easier short video that will put all the terminologies in.
It's insanely good!!!! Couldn't understand better
This was VERY helpful. Thank You!
i was wasted more than one hour ,but you did this lecture in 3 min wow great
Best explanation so far!
This explanation was so good,thank you.
Truly the best video in youtube .. THANK YOU for making my day man 🙏
I should thank you more often. Best video so far.
Thank you for this video. Better than going to class.
Oh my God unbelievable, I understand way better than I did in my 2 hours seminar ,thank you soo much
That person at beginning makes all our exam stress vanish! 😂😂😍
this video helped me so much! God bless you man🖤
awsm explanation .. will recommend to all my friends to watch your lectures..
This video is like cheat in class, best explanation ever✨
Great summary of 2 hour lecture in 3 mins
bruh….THANK YOU! I was so confused but you broke it down very succinctly….
Very well done, very much appreciated
thanks so much
Okay that was wicked easy to understand fr.
You are a lifesaver thankyou so muchhhh.... it was so easy to follow through and easy to understand. Thankyou so much again
This genuinely helped me. Thank you
Please do not confuse people by saying an action potential is not an "electrical current." Rather you may want to specify that it is an "electrical signal." This is how it has been taught throughout history and is also accurate.
THANK U FOR HELPING ME PASS MY TEACHERS USED LIKE 10 HOURS TO EXPLAIN IT BUT STILL DIDNT MAKE SENSE
Yeah sir...you made it....thank u ...you explained really well👍😃
Thankyou very much, this will help me a lot for my test tomorrow
Quick and easy explanation! Thank you
This is awesome!! The best explanation ever!! :D thank you
nice and simple explanation
liked it
thankyou
Thank you sir,3hrs lecture explained in 3mints👏👏
It's just how much I needed! Thanks a ton sir!
My course has a 20 min lecture video about this yet I've learnt it in 4 minutes from this video. Brilliant. Thank you so much.
U r great
WOWWW thank you so much , I can move on and study other things now.
it really helped me thanks a lot I have watched man videos but didn't understood this is so easy thanks a lot
Hats off omg u made it too easy
Thank you, you made this soo easy to understand
Amazing explanation even better than 3 lessons studding it ❤❤❤
Thank you so much!!!! You made this very easy to understand!
Sir this video is very good teaching
This explanation was short and concise!!loved the video and didn’t get confused
Sick vid
I think that returning to resting state after hyperpolarisation is not explained well here. It's not the slow closing of the potassium channels that causes it (it would only cause more hyperpolarisation) nor the sodium-potassium pump (as many online sources say) because it would also cause only more negative potential. The potassium leak channels allow extra potassium out of the cell and are the reason for the return to resting state after hyperpolarisation.
Amazed by your concise teaching sir..thank you..
Made easy makes sense here!