019 What is Summation (2 Types)

[@joshboston2323]

I probably find you the most easy to understand lecturer on KZbin. You don't make things unnecessarily difficult, you stick to the point without adding extra information. Together with Khan academy, arguably the best channel for biology on youtube

[@shaghafafreen957]

You should also check for Neela bakore ...she is also a phenomenal teacher

[@Medicoboi]

Ninja nerd is the best channel for medicine.... Neela bakhore is for pre med students 🤦🏻‍♂️

[@asramohammadi9339]

Should watch shomu's biology too. He's phenomenal. 💯

[@joshboston2323]

@@asramohammadi9339 Thanks, il check it out! Totally forgot I posted this, since it is 5 years ago :p.

[@nishantsen6820]

Medicosis

[@berriebarely]

This is so helpful! I read my book, listened to my lecture, and went over my notes and this just never made any sense. You made this so easy! Thank you!

[@firatk3118]

berriebarely Remove pig elves from Hammerfell.

[@InteractiveBiology]

@anjali1129 Lol! Well, that's good to know! Thank you for watching this video. You can go and check our other Biology videos at the site. We hope you'll find value in them as much as you found one on this. Have fun!

[@ViaPie]

This really helped! Although the way we were taught, SPATIAL summation involves multiples EPSPs happening SIMULTANEOUSLY from 2 or several more presynaptic connections with the connections of the receptive zone of the postsynaptic neuron. The graph we were shown looks completely different, as since all of the EPSPs fire at ONCE, it goes up past the threshold suddenly, rather than in small increments like temporal summation

[@joelschwartz3061]

That's exactly the difference between the two ways summation can happen. Either incremental for temporal, or simultaneous for spatial. Great point.

[@firatk3118]

According to the Elder Scrolls, they speak of something to do with the concept of Zero-Sum, but I went blind before fully understanding the necessities of achieving it. I'm a Moth priest who studied the Dragonborn Elder Scroll, mostly. I won't be retiring any time soon, I'll be on an expedition to Morrowind to learn as much as I can of Vivec's biological, spiritual and metaphysical aspects of how he Zero-Summed, achieving CHIM, though through mechanical/magical means (Zero-Summing requires a deep understanding of existence, not earthly things).

[@firatk3118]

Sylvia C Sell skooma somewhere else, Khajiit, we don't want your kind here.

[@Douchebagus]

Tiger has goods if you have coin.

[@Rae-qf9kf]

Yes we saw it that way as well. For temporal, the graph goes up 2 times and reaches the point X for example; for spatial summatiıon, the graph goes straight to X

[@InteractiveBiology]

@afrprincess07 Glad you liked the video. Please stay tuned for more Biology videos coming very soon!

[@InteractiveBiology]

@pinkash1283 Glad to know that you found value on this one. You might also need other Biology videos and resources. Just head on to our site for more of them :)

[@LemonySweetTea18]

You may have just saved my life in an anatomy exam in 2 days that I'm cramming for. Thanks!

[@InteractiveBiology]

@spaghettidem0n You are very much welcome. I post a bunch of other videos so make sure to check them out :)

[@InteractiveBiology]

@stareleades Unfortunately, Leslie is no longer taking requests for specific videos, but he will definitely get to more systems and more Biology topics in the future. He has many to work on at the moment. So stay tuned for more. :)

[@artiosarri]

My professor did not cover this subject in class however it is on the departmental final. Luckily i found your video, very clear and concise information. Just wanted to say thank you!

[@waad9467]

This is the best explanation I have come across for spatial and temporal summation. You sir are a genius! Thank you so much.

[@catherinenye4743]

LOVE the way you explain things! So much easier to understand after lecture. Thank you!

[@InteractiveBiology]

@UniGirl9008 Yes, definitely, there will be more videos added to the site soon. Do stay tuned!

[@daisytigler]

I just want to say your videos are SO so helpful. Im a vet student and wouldn't be able to pass physiology without you!

[@InteractiveBiology]

@aydn9 That's awesome. Glad it's helping. With an insect that landed on your skin, you are getting stimulus coming from the same source that isn't moving. The stimulus remains, but same source, same receptors stimulated over and over. That is temporal. With a crawling butterfly, you have different receptors stimulated (in addition to the same ones for a certain period of time). Different input is spatial. Hope that helps. Gotta run ;)

[@hahardridge]

This explanation helped a lot with my physiology class, I just could not grasp the concept without the visuals.

[@InteractiveBiology]

@EvelynNLB Sorry, Leslie won't be able to get back to your inquiry. He's been very loaded at the moment with a lot of work. Please do stay tuned though as he'll be adding more Biology videos in the future. Thanks!

[@InteractiveBiology]

@zai4booc You're welcome! Glad you're finding value in them. Please stay tuned. WE have more Biology videos to be uploaded to the site very soon!

[@myranoorwaheed2501]

I'd be interested in seeing you explain how EPP and NMJs differ. Thanks for your effort 12 years ago. You're a teacher that reminds the world the power of excellent teaching.

[@InteractiveBiology]

I'm so glad this was helpful for you, @myranoorwaheed2501. My goal is to make biology as clear as possible. That's a great topic suggestion. I'll add it to my topic ideas list. Also, if you want more explanations like this, make sure to subscribe - I have a ton more on the way!

[@PutenschnitzeI]

hi, I'm from Germany. I used your video to understand this topic due to there are no good german videos.... You speak a understandable English and you present the topic understandable...... greetings from Bavaria :)

[@firatk3118]

Putenschnitzel Sodla Tidings, Nord.

[@Kristy1123]

Thank You! I actually understood it. So happy. Went thru so many videos but didn't quite understood it until I reached your video

[@i.b.creative738]

Great videos. Awesome to hear a different accent backed by a brilliant brain. Far too often, TV shows, dvd producers, academic institutions, tend to promote the French, Spanish, Italian, German, American (Anglo) accents, and this leads to most people being brainwashed to think that the only intelligent humans come with a Spanish, Anglo accent. Thanks for helping to educate other students/teachers/producers that "a person's accent doesn't indicate their intellect nor human value as an educator/human friend".... Keep up the great work.

[@InteractiveBiology]

@Chaldanaya Sure. The importance is to allow the stimulation to bring the membrane potential of the axon hillock to threshold. Once the membrane potential reaches threshold, an action potential can happen. Each neuron is receiving input from multiple neurons, and it takes all of that input and decides whether or not to start an action potential. It basically combines the inputs and generates an Action Potential if the sum of all Potentials is large enough. Hope that helps!

[@InteractiveBiology]

@LotesseElfin You are welcome :) Check out my website for more content.

[@takingthescenicroute1610]

From this description it one could make an educated guess then that the "pins and needles" feeling after a limb wakes up from going numb ("fell asleep") is mostly due to the nerves increasing their temporal firing to reestablish contact with that body part's nerves. It's not felt when the limb first reawakens but after the nerves of the limb reestablish their normal levels (of firing and response) and the excess firing that was triggered to compensate results in the pins and needles feeling until the excess firing wears back down (seems very likely a negative feedback loop at play there).

[@ciaramyers5156]

Why haven't I found these videos sooner. They are making my life so much easier!!

[@dovywing7262]

Here I am sitting in 2020, 9 years since this video has been made and I am learning more from this than my uni lecturer

[@aleskamk]

Great understandable video. Sometimes textbooks just don't make sense and I have to go find other resources! =)

[@InteractiveBiology]

@Jaggamuffin1 That is correct. I'm simplifying in this video by just showing one synaptic terminal, but there can be many on 1 neuron, and they would all be releasing NT when there is an action potential.

[@brittanyjin4723]

Very helpful video! I love how it gets straight to the point and it's very easy to follow along.

[@starfirechik]

I spent 10 minutes reading the same paragraph on this and this video just made it so simply.

[@ahourasorayaei9361]

Absolute GOAT! Finnaly understood this for my final exam

[@InteractiveBiology]

Yayyyy. Glad to hear it. How did the final go?

[@ucmasrockz]

THANK YOU SO MUCH WHY DO I PAY THOUSANDS OF DOLLARS FOR A PROF WHEN I HAVE KZbin

[@JullianBizri]

Beautiful quality, clear narrative, "unique" drawing skills = Awesome. Thanks again!

[@hutshutrules123]

Thank you so much! Medstudent here and really needed this clarification!

[@InteractiveBiology]

@xoxolove808 You are very much welcome. Glad to help!

[@mamaeesh]

Your explanations are perfect- to the point, simple, easy to understand without a lot of unnecessary verbiage to confuse me. Great work! :-) If I get an A on my final, some of the credit goes to you!

[@InteractiveBiology]

@mycee04 Glad to know it helped. Yes, actually, Leslie is an assistant professor at the Andrews University :)

[@InteractiveBiology]

@25Robbo25 You are welcome a million. Glad you are finding value in the content. All the best!

[@hannelangnes6280]

He explains this som much more understandable than my lecturer (she have explained it twice)!

[@TheMegaKidBoy]

Thank you! Your videos have been saving students for years!

[@itsybellee]

omg.. YOU ARE A LIFE SAVER!!!! Wow wonderful video! I really understand it now. reading it from notes and a textbook is nothing compared to visual and explaining. It really feels good to actually know whats going on now :) thanks a lot

[@skomura]

I just wanted to thank you for sharing this video - I was lost until I saw this video!

[@17KL]

super easy to understand. keep it up and God bless!

[@pagodax2599]

8 years ago.. but still work. I don't understand any shit of this in class but it makes sense now Thanks so muchhhhh😍

[@InteractiveBiology]

@Emelyme Hi, I don't think that summation is necessary for every action potential, but I'm not 100% sure of that. Maybe someone else can chime in. I would assume that if a stimulus is large enough from one input, it should be able to reach threshold.

[@mjegan72]

Leslie, Thank you so much for your videos. I have a very hard time with understanding how my professor explains things. You ALWAYS do such a great job of explaining things to where I understand it. You make it simple and interesting. Thank you, thank you, thank you! :) You are AWSOME!!

[@UniGirl9008]

Hi! Just wanted to say thank you. It was easy to understand all these. It has been a great help for my exam. Looking forward to more videos.

[@Shaanjr]

This was ALL I needed. This is an amazing explanation. Thank you!

[@mkdush2]

this video is awesome. your explanations are clear and precise. keep up the good job.

[@InteractiveBiology]

@Lyncas92 I have not looked at that process before. Sorry about that. Trying to get through as much as possible, but some topics will be missed.

[@PatriciaCV9]

EXCELLENT!!!!!!!!!!! LOVED IT! made it much easier for me to understand. I have read this section on my textbook several times, but it didn't make sense to me. Thank you so much! Continue with these great explanations, you make a difference in understanding and also in a grade for a paper ;)

[@Starship245]

Thank you. I never understood what they were talking about until now. Thank you for the clarification.

[@smilebeautifulworld]

There's potential called threshold potential (-55mV) when reached affects certain voltage gated Na+ that when opened give rise for rapid change in membrane potential due to entering of sodium into the cell.

[@xxmusicluvv]

this is WONDERFUL! thank you so much :) :) completely understood the content that I was struggling to learn by reading!

[@pinkash1283]

Thank you for this video! I could not understand what summation was the way my A&P book explained, but it totally makes sense now.... and it seems so simple now ;)

[@bhanwarlal9684]

You have explained summation and its types very nicely and esaily.

[@mariaciocirlan3266]

Very nice explanation! Thank you, teacher!😊

[@anjali1129]

i literally felt the light bulb go on in my head...i think this is the first time i had an aha moment...thanku!lol

[@TennisWannabe]

Thank you so much. Very informative and very brief!!!

[@Keiran8888]

David Schlachter Griffith?

[@TennisWannabe]

Griffith??

[@Emelyme]

Very well explained.... and my question is can we then say that every action potential generated is a result of summation??

[@mkaur95206]

way better description than our teacher.

[@y3s3mi]

All your videos are great! You make is so simple!

[@haroldpinteresque4460]

Starting at 3:42, I hear you say "send another one quickly and another one quickly and ..." How quick is quick? I have checked many sources but not gotten clarity. Between action potentials is it 0.1ms? 1.0ms? 10ms? What is the maximum time period between signals before we go into hyperpolarization territory and lose the summation?

[@versatilevoices]

you know how to explain...thanks for this video...it made things clearer...

[@barissimo111]

well i did not find a german video of this topic so i searched an englisch one...awesome explanation could not be easier explained really thx

[@InteractiveBiology]

@xxmusicluvv That's great to hear. Glad to know that the videos help :)

[@InteractiveBiology]

@Rocky20186 You're welcome! Please stay tuned for more biology videos :)

[@hitppohiman]

you are legitimately the best

[@StayTru101]

Excellent video. He explained this very well

[@selinsonmez9831]

from the bottom of my heart, thank you

[@Jaggamuffin1]

thank you. it really enhanced my understanding what I want to ask now is that doesn't each neurone end in several synaptic knobs and the pre-synaptic membrane is at the end of the synptic knob. So, could it be that synaptic knobs of the same neurone release neurotransmitter ?

[@hishamo43]

thank you for making this easy , book are very detailed that makes you misunderstand the concept . thanks again

[@polarexpress_fr]

Excellent video! Thanks so much! I understand summation now.

[@InteractiveBiology]

@MJCastellanos :) Hope you keep coming back. Stay tuned because we have more Biology videos coming very soon!

[@zee7695]

Amazing video, made me understand asap. God bless you!

[@kubie9216]

Great video, Chap! Cheers from Australia!

[@JoseHernandez-zh5tu]

Great video! You get two gold stars!

[@vanessajoydavid7960]

thank you so much for an easy explanation. that is my report for our biopsych subj. so that it's very helpful.

[@Mister_Soyuz_on_YT]

Vanessa Joy Acedera That's cheeky. Hope you aren't putting too much tension on yourself. Is it a lot to study??

[@shalonnaw9282]

Well done! Thank you for simple and effective demonstration.

[@selumalai90]

Very useful videos. Please keep it going ...

[@Chaldanaya]

@InteractiveBiology Thank you very much for your help Sir.

[@Lilyrae1111]

Thank you!!!! You made the information much more clear for me!

[@footballofficialrx1555]

Very clear lesson I really enjoyed it

[@bdogs5750]

Excellent! Very helpful and easy to understand. Thank you!

[@lil-asaf]

Great video! My only question is if temporal and spatial summation can simultaneously occur. And if so, what happens and how does it happen?

[@InteractiveBiology]

@raru9086 Oh, thank you! Please come back for more Biology videos. Leslie plans to create more for everyone to use :)

[@jenniferhubert7869]

Short and sweet, thank-you. That was very useful.

[@Melissa08087]

Thank you for your videos! They are very helpful to me and make Biology fun.

[@aoifeguiry7126]

Excellent explanation!

[@syedabareehaabbas1031]

U explained the best way ❤

[@InteractiveBiology]

Why thank you. Glad I could help you understand. Make sure to subscribe to the channel, because I have a lot more content like this coming to help you understand how the human body works.

[@stephaniegalati-rando3595]

thank you! finally understand this concept completely

[@InteractiveBiology]

@EvelynNLB You're welcome!

[@InteractiveBiology]

@Luvely10891 You're welcome! Stay tuned for more :)

[@InteractiveBiology]

@TheSwellBell That's great to hear. Glad you understand it now :)

[@mesfensahle8029]

Thank you very much! Well explained🙏🙏

[@jumanaaltheeb846]

Very helpful !! made it much easier for me to understand. Thank you so much :)

[@aman8443]

thank you for video. I have a question about these two types of summations; which one is central stimulation and which one is periferral stimulation? and why?

[@tarajo367]

Perfect !!!! All we need to know in two drawings !!!!

[@missveejay1]

My gosh ..u are great! My teacher with a Ph.D couldnt even explain this :/