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From: greatpacificmedia
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  • It was great and helpful video. However, I thought you were to fast when you talk, it would be perfect if you slow down a little. Thx any way

  • I am very happy to see the vidoe after you give this Segment from the program The Nervous System: Neurons, Networks, and the Human Brain.

  • Steady I Really Like This Video Segment from the program The Nervous System: Neurons, Networks, and the Human Brain.

  • I Really Like The Video From Your Neuron Synapse

  • Your Video Is Very Useful Sharing Neuron Synapse

  • Tropical rainforest - definitely an appropriate backing track. Although it is very helpful.

  • Comment removed

  • I'm just a casual viewer, so where in our DNA is the information stored that allows for such complex structures? What motivates all these things to be built in the first place when you are an embryo? Wouldn't some kind of script have to designate all this in 3d space? What mechanism oversees that every cell has exactly the right amount of gap between each actuator??

  • nice

  • you are saving me from failng ap bio

  • thankyou so much for the video u a life saver !

  • Why no mention of the presynaptic Ca+ channels?

  • This was really helpful. Thanks so much.

  • Thank you. Because my professor SUCKS, I could not, for the life of me, figure out what excitatory and inhibitory effects meant. Sucks when she makes her own book and never even defines it.

  • wtf how i come here from heavy metal Oo ?

  • This helped me ace my Medical Termonology Nervous system test...thank you :)

  • what channels specifically open during an epsp?

    specific Na+ channels will open or A single type of channel will open, permitting simultaneous flow of Na+ and K+

  • what?... like i think im the only person here thats not a student so the scientific terms almost made the hole video go strait over my head here. infact if there wornt pictures id think this was another language. i feel a littel stupid watching this

  • this video is the only method that worked with me! I've tried many other sources in order to understand EPSP and IPSP and they all failed. thanks so much

  • fucking love these videos

  • Absolutely fantastic job of this! I've asked my prof to show these to our class.

  • well an electrical impulse is generated in neurons. so why doesn't it causes the heating effect in neurons?

  • you stole these from the Republic of Scientists :D

  • I found this video easy to masturbate to

  • This video is mandatory viewing for my fellow benzodiazepine withdrawal sufferers, as few of us (including the vast majority of physician's who prescribe Xanax, Klonopin, Ativan, Valium, etc.) understand the electro-chemical process (E & IPSP) which is responsible for an insane degree of excitatory synaptic issues and a long list of quite horriffic symptoms upon removig the benzodiazepine. Very happy to find these neuro posts! Thank you!

  • wow that was too heavy to digest. back to my book. see you soon. thank you

  • Thank you soooo much for this video; I'm taking Biopsych and it's so nice to actually "see" this process (instead of reading a wall of text in a textbook) :D

  • can someone please answer me

    I dont get it, when does the impulse ever reach another cell that is not a neuron and gives the final command?

    help please?

  • @FalloutMessiah the acetyle coline comes into the play for that purpose..

  • @gunjan0808

    ok it I know it was a month but

    what is that?

  • @Mansuya I think my telepathy works with any person on the planet and with some animals.

  • I can use telepathy, I can exchange voice, video, smell, people can move small move muscles on my body from distance and more.

    What I find most fascinating my telepathy is nearly identical what Schizophrenics experience.

    My telepathy manifest itself exact like "Schneider's first-rank symptoms".

    I am interesting to take part in research on it but where??

  • Better than my 3 hour lecture. :) Thank you; I think you saved my exam grade for next wednesday. :)

  • The animation is indeed rather informative.

  • Comment removed

  • I might actually pass my degree now!

  • nice!

  • um.. how is an action potential produced?

  • @atph120890 What basically occurs is that, when stimulated, Na+ rushes into a polarized cell raising the charge to about +20-30 mV. Then K+ leaves the cell in an attempt to restor the polarity-which it does. After that the Na-K pump restores the two Ions to their correct quantities on either side of the membrane. The Na+ rushing in in one area stimulates the action potential in an adjacent area- all the way to the synaptic cleft. This is faster when the axon is sheathed in myelin (Shwann cells)

  • GREAT!!!!!

  • nice post more

    thank u so much

  • Thanks! It's making so much more sense now!!

  • V-ATPase structure analysis and its mecanism sould be animated. Go to Osaka Univ. (JAPAN)

  • As far as I can see it at 1:20 the video conveys wrong information. One synapse can only emmit one spcific transmitter (the video shows different coloured transmitters). So one synapse is either be inhibitory or excitatory but not both at the same time.

  • ... which causes a post-snyaptic erection.

  • even for me, I´m german, it is easy to understand :) thank you a lot!!!

  • Bravo...

  • the crickets are inside my brain..... must get them out.... give me the scalpel........arrrghhhh

  • Apparently, this is the synapse of a cricket.

  • @deepseaelk Hahaha! :) Yes...

  • can someone please tell me what is the difference between the synapse and the synaptic cleft, our  teacher have failed to simplify it to us ...

  • @Seas00Gurl The Synapse is the whole combination, the Synaptic cleft, the Presynaptic membrane of the Axon and the Postsynaptic membrane of the Dendrite. The synapse cleft is only the 'gap' between the two membranes. Good luck!

  • great visuals and clear explanation~ thx

  • Thank you! Just helped me with my freaking bio exam tmrw...:(

  • made too complicated than it should be yet it doesnt give enough detail for anything higher than a D at a-level

  • ambient noises WTF

  • u suck!!!!!!!!!!!!!!!!!!!!!!

  • WHAT?

  • i think i failed that test ..

  • ummm i dont get it

  • would get rid of the animal sounds

  • great video guys!!! it is easy to understand...and i can say that ...because i´m german and understood everything :D

  • great video- but the noise in the background (chirping etc) was very distracting.

  • great addition to my reading on the synapse, i am a visual learner

  • Thanks for this video, really helped me understand the concept for my up coming exam!

  • Fantastic!

  • awesome video! thank you!!!

  • Would have been nicer if that shrill background noise wasn't overpowering the narrator. Great info tho

  • thank you so much great video

  • Great video, made everything clear!

  • nice!!! thx!!!

  • thank u! :))

  • thaaaaaaaaaaaaaaaaaanks

  • Learning this stuff is AP Psych, and this video helped.

  • OUTSTANDING VIDEOS.

  • @ouidiani Awesome glad you like them

  • Good but too much for intro psyc

  • Thank you so much for posting this! I'm taking a biopsych course, and it's been over 20 years since my last bio or chem course! This is very helpful

  • that was awsome this helped me more than just reading the book barrons ez 101 psychology

  • when i read a book saying the same thing i couldnt understand ...but when i watched this video i totally understood it. (the explanations clear)

  • 5/5 stars!

  • this is really helping out with my project thanks!

  • Maybe I am missing something - but at the end doesn't this say (2:23) "post-synaptic potentials cannot travel far..." and then (2:33) "however, post-synaptic potentials travel far enough to reach the cell body" - surely that is a mistake...

  • @dragonfry

    what they mean is that PSPs dont travel very far, but just far enough to go from dendrite (where the receptors are) to the cell body. it does not need to travel any further than that, because at the cell body, MANY such tiny signals are integrated. then it is decided whether or not to fire an action potential.

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  • @dragonfry What is meant by this is simply the postsynaptic potentials, either EPSPs or IPSPs are not sufficient to travel on there on down an axon as an active signal thus passively diffuse their charge far enough oonly from the dendrite to the cell soma where if sufficient EPSPs are present, they are graded into an active signal, called an action potential, at the axon hillock whereby this active signal actively conducts along the axon to reach the nerve terminal.

  • @dragonfry I think it's meant like the following:

    "Post synaptic potentials can not travel far, but they do travel far enough to reach the cell body"

  • @dragonfry

    I seem to be a little late to your comment... If no has answered it, let me take a whack at it.

    PSP cannot travel far, so they can only diffuse into the cell, and not to other cells, and the synapse distance cannot be too great. So, it can travel far enough to reach to cell body, but not so far that it gets to the other side of the cells or nearby cells. Plus once the chemicals reach the dendrites it may start off another wave, meaning that the chemicals do not have to travel far.

  • @dragonfry I may be wrong, I am new to neuron-mechanics.

  • @dragonfry Its true, post synaptic potentials can't travel very far, their transmission is dependent on the use of leak channels since there are no voltage gated channels on the cell body of a neurone - therefore the signal diminishes as it crosses along the neurone. The PSP signal is strong enough to reach the cell body but not the axon (which is what I think you're getting confused about). Collectively the PSPs from other synapses will summate at the cell body causing an action potential

  • awesome, thankssssss

  • Great video, now I FULLY understand IPSP and EPSP's!!! Thank you

  • Nice video, could have gone into more details on EPSP's and IPSP's, i.e NA= and CL- channels etc...but a great summary nonetheless: Visuals help a great deal

  • Action potential baby! That's how I study, through conscious reinforcement and repetition to hard-wire my neural connection.

    I'm looking at my self literally(Coded language).

  • OMG!!! Very helpfull!! Great visual to help understand the whole sequence of events. THANK YOU!!!!!!

  • great visual....it just summed up my chapter with no information missing, thanks!

  • Great video thank you so much.

  • I found this helpful. Thank you for posting.

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