The Action Potential
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- Опубликовано: 21 июл 2024
- Meet the neuron. Voltage gradients and concentration gradients, resting membrane potential, depolarization and hyperpolarization... all explained here! Plus, explanations of refractory periods and how the axon overcomes the loss of signal strength over distance. WOW there's a lot here!
To watch the video on Equilibrium Potentials (which explains WHY Na+ and K+ want to move in the directions they do), click here: • Equilibrium Potentials...
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One of the best scientific lectures/explanations on youtube... and I've seen a lot! Thanks.
The Nodes of Ranvier act as amplifiers. The signal strength weakens as it travels down the axon but at the nodes you get a new AP. :)
I'm doing a correspondence course and I'm often left with questions and no one to draw me a picture, both literally and figuratively. I think I have it now, thanks for the great graphics!
You've a knack for explaining things and making it interesting and understandable . The best video I ever watched on this topic. Thank you so much. Subscribed!
Hello Professor - I am getting a master's in human anatomy and physiology instruction (MS HAPI) and am researching ways to learn histology at the undergraduate level via the internet. I hope you don't mind, but after reviewing several other You Tube sites and presentations, I have chosen yours to represent instructional narratives with visual aids. Bravo to you for putting these together! I wish you great success.
The best explanation of action potential I've seen, and this is my third course studying biology in some form. Thank you for clarity and substance.
Youpiiiii. Eureka said one of your fans. Wow this sooo stimulating, it's like I made a discovery myself. God Bless you, you're amazing.
Wow, thank you!
Thanks a bunch got a test tomorrow and got confused in my lecture.. This set everything straight for me..Thanks again
16 minutes ago I didn't understand action potentials...now I do! Thank you very much - I have an exam on tuesday (at GCSE level) so although for me this is in a little too much depth, if a question on action potentials comes up, I think I'll have a much better understanding.
Your video was very clear and very helpful! I am teaching AP Biology for the first time and I was at a total loss of how to teach action potential until I watched your video. Thank you!
THANK YOU SO MUCH YOU ARE SO AMAZING, I LOVE YOUR TOME OF VOICE, THE ANALOGIES UTILIZED IN YOUR VIDEO. It has made it that much more comprehensible for me, in my case returning to school after many, many years away being a mom! It's makes perfect sense!
Why didnt i see this before my physiology exam . Precious information well appreciated :)
Thank you very much for making this video, You've explained much better than our doctor did, I'll be watching it over and over!!
that was the best explanation Ive ever heard on this topic, thank you
I learned more in fifteen minutes of this video than two days of class...THANK YOU!!!!!!!!!
Thanks again for such wonderful explanation, I have to admit that I didn't understand much about nervous system before I watched this video
If only my book could make the same effort to explain the action potential this clearly. Bravo!!
Amazing, wonderful, and such a brilliant way to explain this difficult concept. Thank's
You really make this clear. THANK YOU!
Best Video I have found so far - Thank you!
It was really helpful. Expecting more videos from you in future.
no video was able to teach like this one!!! thanks a ton!!!! :D i was sick the day my teacher taught this, im in gr.12 bio and i was able to understand this really well. THANK YOU!
Thanks so much and GOOD LUCK TO YOU!!! It takes a lot of courage, I know. :)
Very clear and concise, this video was just what I was looking for. Thanks!
Thank you so much for your videos. :) The explanations and visual aid really aided me in understanding action potential!
Best explanation of the action potential on youtube!! Thank you for uploading this!! Some videos were incorrect/didnt mention potassium. Don't make an educational video if you dont know how to youtubers!!!
Hands down my favorite explination of the sodium-potassium pump in regards to action potential!
BEST EXPLANATION I EVER SEEN. THANK YOU!
Wow, thanks!
Thank you for this video. I'm studying for my Biology I final and this helped me clear out a lot of confusions. I subscribed right away!
Thank you very much for all of your vids. You are a great motivation, greets from Germany
PHENOMENAL ! I have my test tomorrow ~ this video is extremely well done !
Such an excellent explanation! Thank you so much.
I was a little skeptical at first when I saw that you were going to incorporate kids running out of class rooms and relationships with the action potential but you managed to break it down quite well when it was all said and done. Good job.
Sorry... this is one of the areas I had to simplify because it's beyond the scope of most of my intended audience. In truth, there are at least 5 different types of voltage-dependent K+ channels in human axons. For details, check out the article by Reid et. al., in Journal of Physiology 518.3. Hope that helps!
You are amazing. Thank you. Your explanation indeed helped me understand the process!!
THANK YOU SOOO MUCH!!! NOW I UNDERSTAND ABOUT THIS NERVE IMPULSE THING. THANK YOU SOOO MUCH!!!! I LOVE YOU!!
you're a fantastic professor/teacher! thank you
honestly best teacher ever
YOU ARE AMAZING!!!! Thank you and please continue making more videos!!!
I am in the same situation... starting my program after many years ! =) Good luck Maria !
Wonderful and interesting lesson!! Thank you!
Very well explained, thanks so much!
Wow good way of explaining....thank u so much
big love from Egypt you made it sop clear for me
Superb explanation. Born communicator - thanks!
Amazing lecture ! Thanks
+captfalconXX Thank you for watching! So glad it was helpful.
You are so Awsome!!! Thank You so much!! Very Detailed but still Simple enough.
This is gold. Thank You!
Thank you!! Great explanation.
Informative and fun to watch :) Thanks for making this video. No more prob..situatiations with APs ;)
Ahh, thank you so much! You explain that so well. I feel a lot better about my understanding of neurons. :)
Awesome video!!!
That was really really amazing and really damn perfect clear........... I understood every single bit.....!!!
#Loved it#.....!!!
Having a bioscience test coming up soon, your channel (be it sodium or potassium) helped made revision easier
So glad to hear it! GOOD LUCK!!!
Thank you so very much!! You made this concept finally click for me!! :)
You are so helpful, thank you so very much!
Soooo helpful! Thank you !
Thank you very much for this.
Thanks. This is brilliant!
Awesome, helped me a lot, thanks
Thank you , this was very very very Helpful ;)
Wonderful. Much appreciated!
If the cell membrane were hyperpolarized to a resting potential of -110 mV, what would be the effect on the potential opening of K+ channel?
great video, keep it up :)
Hello prof, is action potential and positive or negative feedback loop? How so?
you say that the K+ channels are always open. Than how do you explain that the repolarisation is much slower than the depolarisation?
Thank you so much! That was helpful!
+Harveen Kaur I'm so glad to hear it! Thanks for watching!
Wow thats a lot of information..is there a video on youtube that kinda explains the big picture. Because I now know this little part and how it works but where in the brain is it in relation to other parts.
But great video :)
interesting, clear and fun...great
Thank you so much for such comprehensive explanation,
Can you please tell me what kind of software for your great lectures, ?
thanks
jeez, i wish you were my teacher. this helped soooo much!
ty very much :) it is really helpful!
There you go, so much easier than the 11 page handout our professor gave us...
this is so good
Thanks, it's awesome!
great video thanks
That's super useful, thanks!
Glad it was helpful!
BTW our professor really digs your whole approach to all these topics. I suppose it gives an alternative perspective that makes the material really stick with the student
I appreciate you. Thank you.
WONDERFUL!
THANKYOU SO MUCH !!! THANKYOU THANKYOU!
thks it was really helpfull !
You are amazing!!!
+Shnarika Powell Thank you!!!! I'm glad you found this helpful.
thanks you so much!
Thank you very much. :)
amazing!
thank you!!!
Thanks for the great thorough explanation! The Jamaica made me laugh pretty hard :)
Thank you soo much = D
Thanks!
THANKS..THIS WAS COOL..
What re-amplifies it??? :O
Oh woman!!! I love you!!!!!!!
Tyanks a whole bunch.
!!Thanks for a great video-explanation
3> from Israel
THANK YOU!!!!!!
You are amazing! No more worry here 'mon'...
Just like night and day. Thanks
muchas gracias
you are a goddess! thank you sooo much!!!
i could'nt undersatnd a word untill i saw ur video!!!phew!!