Lights, Camera, Action Potentials!

An action potential is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called excitable cells, which include neurons, muscle cells, and endocrine cells, as well as in some plant cells. In neurons, they play a central role in cell-to-cell communication.
This video is licensed under CC BY-NC-ND 4.0
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Visit Carleton's Neuroscience Department at carleton.ca/neuroscience/ and check out the podcast at mindingthebrainpodcast.com

[@MyZac01]

learned more in five minutes then school could teach me in 2 years :*(

[@CarletonUvideos]

Thanks for all the feedback. I'm thrilled the video has been helpful for so many people!

[@smack007]

Thanks so much, my textbook was making my head spin all day but this video really made it easier!

[@mickiemox]

Wow just wow. Couldnt understand a thing from when i reading my textbook but watching this... I understood it thank you!

[@tanyaaugustine6765]

I teach high school neurobiology, anatomy & phsyiology & biology and this is the best video I've seen yet. Thank you!

[@bumble21bee43]

The person teaching this is really a God sent.... Much more comprehend able than d rest.....

[@elmanu6538]

Perfect video, that explains everything in simple terms yet understands the complexity of how the system works.

[@asma16cool]

Simple illustrations, smooth voice, informative. Thank you c:

[@forest_sail]

Helped my 7th graders enormously. Thank you for creating this

[@taekwonwelchify]

this is by far the best and most accurate video I've watched on action potentials in the past hour. thank you!

[@mustafabadri1499]

It makes so much sense and very easy to understand

[@ersinasliturk7861]

This is the best explanation of how neurons work! Thanks to CarletonU folks!

[@B3bita1215]

Excellent video!!! Love how simple, yet so informative this video is :)

[@pellen96]

Fantastic video! Thanks

[@whostolemyTV]

Great animations, clear and concise, a lot of help

[@woyorus]

Great video!

[@asiastandifer6283]

Thank you for this video!! It really made this concept easier to understand!

[@branver1172]

Thanks for posting! This was clear and interesting. And, oh my goodness, the nervous system is a complex and beautifully designed.

[@leanne3213]

Great video! Very informative and understandable.

[@ILyogibibs]

Thank you for this. Most helpful in understanding this topic.

[@tashibombay]

Very clear explanation. Thanks!

[@farafeu2670]

excellent animation!

[@smilerkris]

That was super good! Thanks :)

[@alessandracoleman2673]

Thank you so much for this video. It's very helpful and very simple to understand.

[@d.beautygirl8805]

FANTASTIC

[@tribehut3]

really helpful...clearly shows what happens in a way i can understand. thank you

[@nomsapraise7042]

Thank you!!!!

[@mrs.carlson]

This is fantastic! Great supplemental video clip for my A/P class.

[@thatsmybriefcase]

Nice video!

[@VladCodY]

Very useful indeed!

[@Triplex136]

Oh noez, Mr. Lee sent me here.. time to take dem notes. 5th Period ftw.

[@mridulrambani4718]

nice video. So helpful for me.

[@faridalam798]

Thanks a lot

[@maryamsabbagh220]

Thank:) you it's really helpful& super easy.

[@user-hi4qr3fd1n]

Excellent👏👏

[@komposteramig]

Thank you, most comprehensive and understandable explanation of this I've found so far!

[@mam09d]

Best video ever.

[@amdem5886]

Thanks alot .....

[@sinamoazami2493]

perfect video

[@alondrapacheco6847]

.yay finally i get it thank you soooo much!!

[@mianshahidmianshahid4212]

superb

[@trunkcvageta5000]

Thanku so much sir it ws really helpful may God bless u

[@floriath]

Great video! Deserves a mn likes.

[@demorttete239]

so useful I wish my study will be more correct in next years because I want to know true afects like this video so nice

[@yodaydyxz1752]

It's a good demo.

[@Mr604bourne123]

one of the best learning videos to remember

[@Hex180]

Personally I would've accelerated, but still got the point, thanks.

[@LifeIsForEmos8D]

Excellent Video! I have a question, though. How do Potassium an Sodium ions pumped into/out of the axon return to their original levels after an AP? Is there a reversal?

[@davesenften4118]

+LifeIsForEmos8D Active transport via the Na+/K+ pumps restore the neuron back to resting potential...this process is called repolarization.

[@HaleyChartier]

Go Dr.Hellemans 🎉

[@Veehon11]

you need to reverse the sodium gate and potassium gate since the sodium should be on the right and the potassium on the left when the AP is moving to the right.

[@angela-hm7rq]

seria genial si tuviera subtitulos

[@BentAlward2011]

It was to hard to understand tell I saw this demo Thank you

[@kellysimons9184]

RMP (Resting membrane potential) is -90 mV

[@trunkcvageta5000]

It is the case when post synaptic membrane is muscle membrane sarcolemma whereas in case of neurons its around -70

[@katjathesaurus3800]

Vampire eyes... HISS! .. or i cslL them zombies

[@BR-hi6yt]

Just switches basically - why all the terminology and laborious step by step explanation of SWITCHES?

[@mikemcmanus1574]

a lot going on here

[@patrickharrison783]

Narrated by Caillou's dad.

[@johngaines2344]

what

[@megancanter3771]

mid video

[@demorttete239]

so useful I wish my study will be more correct in next years because I want to know true afects like this video so nice

[@demorttete239]

so useful I wish my study will be more correct in next years because I want to know true afects like this video so nice