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The Nervous System

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041 - Animal Nervous System
Paul Andersen begins this podcast with a discussion of brain lateralization and gives a brief demonstration of tests that were performed on split-brain individuals. He then discusses the major parts of a neuron and explains how action potentials are generated using voltage-gated ion channels. He explains how neurotransmitters transmit messages across a synapse and how these messages can be either inhibitory or excitatory.
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Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: www.freesound.o...
Creative Commons Atribution License
All of the images are licensed under creative commons and public domain licensing:
Bananas, n.d. openclipart.org....
"File:Action Potential Vert.png." Wikipedia, the Free Encyclopedia. Accessed December 9, 2013. en.wikipedia.or....
"File:Butyric-Acid-3D-Balls.png." Wikipedia, the Free Encyclopedia. Accessed December 9, 2013. en.wikipedia.or....
"File:Hemispheres.png." Wikipedia, the Free Encyclopedia. Accessed December 9, 2013. en.wikipedia.or....
"File:Neuron Hand-Tuned.svg." Wikipedia, the Free Encyclopedia. Accessed December 9, 2013. en.wikipedia.or....
"File:Synapse diag1.svg." Wikipedia, the Free Encyclopedia. Accessed December 9, 2013. en.wikipedia.or....
Flower 7 Colors, n.d. all-free-downlo....
Saltcellar, n.d. openclipart.org....
Sun, n.d. openclipart.org....

Опубликовано:

26 авг 2024

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Комментарии : 386

@guitargod024 11 лет назад

Mr. Anderson you are literally the lifeline of my whole bio class. You can explain more in 5 minutes than my teacher can in 5 weeks

@tamargrey8529 10 лет назад

"you're forming memories right now" Oh god i hope so

@asadyamin4867 5 лет назад

@Ashking01 lol

@coreneabernathy3836 5 лет назад

Tamar Grey

@lilianalex1417 5 лет назад

wooooow i like that

@jenmb2679 4 года назад

Not me. Ill have to watch this a million times

@knightgaming3418 4 года назад

@imanz7681 8 лет назад

nothing like a little Bozeman and chill

@marcelomello8797 8 лет назад

+Iman Zarrinkoub that is an amazing sentence.

@pengfeidong5268 4 года назад

*no other sentence can be taken so many different ways*

@MsJulesHorne 11 лет назад

You have such a knack for making a complex subject understandable. Salty banana is exactly the type of easy to remember memory prompt which is so useful in an exam. Thank you

@annalee2702 3 года назад

If all teachers and professors taught like you, our world would be completely different. Thank you

@Nicole3900 11 лет назад

Keep in mind: In the PNS, myelin sheaths are made out of Schwann cells. In the CNS, myelin sheaths are made out of oligodendrocytes.

@gordonledwidge2557 8 лет назад

you are an excellent teacher, so clear, you make it simple and I can't thank you enough for all your videos, they are helping me gain the understanding I do not get in class. you are a true gift from spirit. rainbow

@xxwafflez 10 лет назад

Salty banana. Great analogy, really helped me understand where the concentration gradients began and changed. Thanks!

@roryspiller 10 лет назад

salticrax

@nightfox380 8 лет назад

Took A&P and gained a rough understanding of the Na+/K pump, action potential, and nerve synapses, but now everything is suddenly clear after watching this video. Thank you so much for this.

@CloroxBleach-gb1uc 5 лет назад

I definatly didn't say it was a flower I thought it was the color weel

@sumiketra9271 4 года назад

Me too bro!

@jbfamequeen 6 лет назад

Just wanted to say that i've watched this video probably four times and each time I've been confused about action potentials and the potassium pump - but finally I got it! I feel so proud of myself but also so thankful to you for explaining this process so well. Thank you so much for all the hard work you do!!

@bridgettewalker3739 6 лет назад

My AP Bio teacher assigns these to us for HW and it's honestly so helpful!! You explain everything so simply so I can understand but it gets the lesson through really well!

@vanitycocaine91 9 лет назад

I took anatomy and physiology over 5 years ago, and I kinda forgot a little and your videos are serving as a refresher to my dimmed memory. I'm going to pass the Teas Test with ease.

@syedaali866 4 года назад

you just taught me what my teacher couldn't for 2 classes, I swear I almost gave up studying for this test. god bless you!

@Joannawysiwyg 3 года назад

I'm 68 years old and just discovered this series. What a great way to finally learn some biology--I could listen to you all day! Thanks, you gifted teacher. "Every day's a school day."

@ithinkmynameismoo5e 7 лет назад

The salty banana is the first time I was able to get the ions correct. Each other explanation is confusing about what flows where-when. Brilliant, as simple as anything but explains it perfectly.

@lorreeandco.7717 2 года назад

Glad I'm not the only bio student coming here with a jumble of confusing notes about action potentials and Na/K pumps, looking for a better explanation. 🥴 You actually make sense. But I'll still need to watch this one a few more times haha

@amberg.6594 10 лет назад

I am so glad that I found your videos. They have made a huge difference in my gpa for Human Biology! Thank you so much for taking all this time....

@minpark2664 8 лет назад

You are better than what my science teacher has ever explained in his class. Very specific and useful for science dummies like me! Love you and thank you sooo much!!

@vickygilcespedes6012 6 лет назад

Oh my God I am so grateful for this man. he is the best explaining this subject. I can say i have learnt more with him than with my teacher. She only read ppt at class. Thanks Mr. Anderson, you are the best.

@jennyB07 12 лет назад

My teacher showed us this video in class a while ago... I live in germany but our school lets us choose between biology class in german or in english, so this is extremely helpful for me, so THANK YOU!

@DontBeThatGuyy 11 лет назад

That moment when you finally realize what the lines on a heart monitor are

@Competitive_Antagonist 4 года назад

You mean the action potential? It's actually a bit different. The heart trace is a composite from the electrical activities from the various ventricles and valves of the heart. The heart trace looks quite different, but is similar in that it has an excitatory and refactory stage. The different peaks can tell you a lot about the different fuctions of the heart, like long QT. The peaks are named QRST in respective order and a heart with the long QT will take longer to go through the 4 peaks making it less efficient at distributing oxgyen to the body. Someone more qualified may explain this better, but I don't think the action potential is the same as the heart trace.

@Zak.f 11 лет назад

Your voice is so soothing!

@davelangford2439 10 лет назад

I've watched a lot of your videos now and this is the the best one so far IMO. Very well presented.

@roryspiller 10 лет назад

OMG I TOATS AGREE BAE

@AimanM 11 лет назад

I hate this topic but you make it seem so easy. But we have a lot more information regarding this like different types of channels, etc. I wish we just had this much :(

@peacelovemeaghan 10 лет назад

So informative and simplified! I've been watching your videos since Grade 12 and they've continued to help me through first year university science courses. Thank you so much for your help!

@hem5337 8 лет назад

You are awesome. I would never be able to pass A&P without your videos. I got over 100 on my last exam, when the class average was only 80, because of these videos. Thank you so much!!

@MariaLourdes-mn3xx 10 лет назад

You are a GENIUS, Mr. Anderson! Thank You!

@RANZER55 9 лет назад

Haha 'salty banana', that's the best analogy ever, cheers!

@leafspoof13 11 лет назад

your voice is so relaxing but not the bad relaxing so i don't fall asleep like i usually do in class

@Cayticautchin 11 лет назад

Good sir, you make biology interesting. Got an A on my test thanks to you :3

@5kyzthelimit 11 лет назад

This guy should be my biology professor!! short lessons that summarize a whole chapter.

@baileyedwards4530 9 лет назад

The explanation of the split brain thing reminds me of that episode of House with the guy whose left hand hated everyone.

@sarahhess464 9 лет назад

Bailey Edwards The human brain is a interesting machine . Who know to what extend a person can manipulate the human body with the right conditioning and training or access the subconscious mind. I know some people who been training for years in such disciplines and technique's. They can control their heart beat and body temperatures and reset their sense of smell. When people get used to a smell they stop noticing it , They can also boost up the sense of smell and even able to push aside external distraction to more easily focus on sound and this makes them better at detecting lies. When people lie theirs a small shift in sound or variation for some people it is very slight almost unnoticeable for others it more bold and easier to detect. They keep trying to develop new disciplines and techniques to manipulate their own body and minds. I understand they are currently trying to mimic the effect of channeling electrical power through them without killing them. They heard about a man who is able to do it and are trying to mimic the effect. People sense accurate things about people all the time on a instinctual level. I wonder if its genetic or trainable. They do look very much alike.

@ElaGTheBoss 8 лет назад

+Bailey Edwards yeah, I did a research project on alien hand syndrome (inspired by that episode of house), the corpus callosum surgery is actually one of its main causes too.

@tak2malay24 4 года назад

FROM INDIA "Guru Jee" (sir) , touching your feet for your blessing. You are epitome of gravity of impact a good teacher makes on common lives of students turning few of hem into extraordinary minds.

@vidya.v 6 лет назад

My favourite video - it helped me in school, in a biology olympiad and is still helping me in college. Thank you very much!

@colinstepuszek7244 2 года назад

Dr. Bozeman, you are the GOAT! they way you are able to break down a video in more in depth detail as well as present it so we can understand it is amazing!! Please continue to do what you do because you help me understand Bio!

@Yomomma-jf9iy Год назад

Based on what I read on pewdiepie (I honestly have no idea why RU-vid users behave the way they do), I guess sharing his links counts a lot for the algorithm. Try doing that, it will help the GOAT.

@firefighter3433 11 лет назад

My teacher talks about this for hours i don't understand him but you do in 17 minutes and i clearly understand

@Ali-dm1ly 7 лет назад

Wow, thank you so much for this video. I could not, for the life of me, understand what an action potential was and you completely cleared that up for me.

@lilmamasofly9111 11 лет назад

You dont know how much your videos help me

@WiktoriaSta 10 лет назад

these videos are literally the reason i'm doing well in bio. Thank you so much! So reliable as well !!

@roryspiller 10 лет назад

Congrats bae

@P14N0L0V3R 10 лет назад

"you shall not pass" LOL

@DJcMugaba 9 лет назад

YOU SHALL NOW PASS your class

@kobealvarez2724 3 года назад

@@DJcMugaba that was me like 3 days ago but im barely passing lol

@sebastianm.6875 8 лет назад

you are awesome. teach better than people with doctorate degrees at my school

@bananacanada25 10 лет назад

TYSM! I'm understanding this for the first time!

@sarahcannizzaro987 10 лет назад

bozemans science and craig savage videos are enuff for me to score top marks thanks alot to both of u..you guys are just amazing..

@khayyam3000 6 лет назад

You've outdone yourself again Mr. Bozeman!!!!

@Thic85Nic 12 лет назад

Amazing.. I defiently just told my Physiology professor about your videos and how great & helpful they are. I appreciate all you have taught me this semester. Keep up the GREAT work

@laceymariemclear 9 лет назад

Thanks so much for all the videos!!!!!! I couldn't have passed my anatomy and physiology class without them!!!

@ThreeFreeTrees 5 лет назад

Bozeman Science, my favorite RU-vidr!!!

@charlieelischer9320 4 года назад

tfw you don't know whether what your drawing is a flower or not until yuo draw a smiley face on it and you immediately recognise that it's the sun lmao

@saakethkoka224 7 лет назад

Midterms tomorrow. I am gonna spend all night watching these.

@katiehostetler2673 6 лет назад

Thank you so much mr Anderson. I wouldn't be surviving ap bio without these videos

@alexw2366 10 лет назад

Brilliant explanation as always.

@roryspiller 10 лет назад

i love Bozeman Science!

@andreaurueta928 11 лет назад

i love you, can you be my college professor? Seriously, we need more of you!!!

@lisapanter4725 9 лет назад

You are THE BEST professor ever!!

@sarahtorres8640 10 лет назад

You're awesome! You explain everything better than my professor in half the time!

@pccnamusic 2 года назад

It's insanely fascinating how the brain works

@raiskhan-xn9dp 9 лет назад

You are THE BEST professor ever........... THANK YOU SO MUCH!!!!!!!!!!!!!

@MsJune3000 10 лет назад

This Video helped me a lot! Watched it 2 times and took some notes and I understand it now. Thank you so much :)

@squizzyt8698 3 года назад

Super cool then and now 2021...thanks

@helenamelon 12 лет назад

great video! that actually really helped me understand my college bio exam.

@jennifertorres5106 8 лет назад

I am loving the way you explain things, Thank you !!!!!!

@lkelly7911 10 лет назад

That was very helpful!

@alihamed3731 8 лет назад

I love you. Your teachings have helped me in bio. So much better than my teacher

@atayavuzer608 8 лет назад

+Ali Hamed feel you bro

@kevingreco672 6 лет назад

Thanks for all your work

@1320Dj 10 лет назад

Another awesome video to help me out on biology, Thanks!

@jamesgordan1575 8 лет назад

Paul Anderson is awesome .

@justinbaskall8291 10 лет назад

Thank you so much. I've been trying to understand neeons and how action potentials work for my bio class. This really helped.

@coraliematthews4295 8 лет назад

Many thanks for these informative, easy to understand videos, am studying neuroscience at the moment and these straightforward explanations are exquisite. I have I hope (thanks to my neurons) kept most of the info imparted.

@megavore97 9 лет назад

Every time I watch one of these videos, I can't help but think of the matrix. Well Hello Mr.Anderson...

@xograciebabiexo 10 лет назад

I have to say you really have helped there. I couldn't get my head around it and its been driving me mad but thank you so much exams soon and I appreciate you doing the video has helped me so much :)

@linchen910 9 лет назад

This is so great! Thank you so much for making it

@rendavis4945 11 лет назад

It happens at the nodes of Ranvier. A change in voltage across a plasma membrane can only occur in areas of the axon that are non-myelinated. In myelinated axons, the only areas that are non-myelinated are the nodes of Ranvier. (my notes)

@bigstrongfast 10 лет назад

You explained it much better than my professor

@isaidromerogavino8902 5 лет назад

Damn, I couldn't tell what I saw when you showed the earth and the flower, so I was afraid to have some problem related to my corpus colossus. However, I was totally able to identify the sun, while testing the other size of our sight. Finally, I concluded there wasn't any issue with my brain or its functions. Only after realizing this was all due to being a left handed person, myself. Never thought something of this great depth and cognitive-essential as this (the way in which we process visual stimuli and can identify images, depending on which side is received) could be tested as easily as you did here. Even less, that said process could, possibly, be affected by which one of the sides is the dominant one. Just amazing and mind-blowing!!

@karlaiulia3904 11 лет назад

Love this ! I understood all about the nervous system from this video even if I'm romanian and I don't speak english very good

@salong53 11 лет назад

The Na+ and K+ channels are voltage-gated, meaning that they open and close in response to voltage thresholds which are governed by ion concentrations. So Na+ diffuses in through a channel, and the more it diffuses, the more it spreads inside the axon, causing that local voltage change to spread to adjacent voltage-gated channels. Imagine this like a domino effect where one channel after another opens in response to Na+ diffusing in upstream and then diffusing downstream with the conc. gradient.

@user-zu1oq5px8t 10 лет назад

Thank you so much for saving me from the book. Mr.A you got yourself an admirer. A question: are the inhibitory and excitatory neurotransmitter forming a new action potential curve by leveling at the receptor neuron (or whatever it is called) or are they literally voting and the winners' message is transferred? (If you can understand what I'm taking about....) Thanks to anyone reading this

@theambrosius105 4 года назад

Sir it was really helpful... Do make such video...

@journiex 2 года назад

U deserve all of the noble piece prizes

@tishtishtishy 12 лет назад

your videos are great! seriously helping me get through college right now.

@jjauzie 8 лет назад

Awesome explanation !!!!!!!!!!!!!! Thanks so much and I think your videos are really helpful for my final exams coming a later couple of week

@natsudragneel6669 11 лет назад

I LEARNED SO MUCH! I am about to do some report about this topic and you gave me so much Idea on how to explain it more effectively. THANKS! ^_^

@dawitbegashaw6302 11 лет назад

Thank you i like all of you'r videos i learn more thing and memorize the lecture u give thank you again.

@anikixvi 12 лет назад

It IS helpful!!!! Thank you thank you thank you!!! Beated reading over -and spacing out while doing it- looooooong endless pages if words!!!

@alexluv2ify 6 лет назад

"so thats weird" "its like playing pictionary with yourself" lmao thanks for waking me up at 12:14am...trying to stay up and watch all these videos!

@user-ep3gi4jl9z 9 лет назад

mr anderson, thank u so much! you are awsome!!! you helped us a lot!

@DavidL999 11 лет назад

Your videos are great and very helpful. The college notes I have for anatomy are only good for sending me to sleep.

@SalimMohammedphrm2015 9 лет назад

An awesome recap on my first semester BIOL1040 contents. Thanks! :)

@SalimMohammedphrm2015 9 лет назад

BIOL1020 is straight forward compared to 1040 lul

@SalimMohammedphrm2015 9 лет назад

Righto

@cancan7381 6 лет назад

great teacher thank you for your videos

@Ahsoka_Tano 9 лет назад

I am taking Anatomy right now and these videos help out a lot, so thank you :-)

@salong53 11 лет назад

It has already happened upstream. Since the action potential is directional, the impulse originates at one end of the cell and propogates to the other end.

@user13947 10 лет назад

You're the best! Thanks!!!

@maegulick 10 лет назад

you've been a blessing to us... thank you... thank you...

@lilachu7654 3 года назад

Thank you for the video.

@simonerobinson7966 11 лет назад

thank you so much for your clear, understandable explanations! Everything makes a lot more sense now :)

@xxxEmstarxxx 6 лет назад

Eyyy thanks man your videos are helping me a lot with my biology revision for a levels

@superninjadinosaur10 12 лет назад

you're helping me pass my bio unit exam you wonderful person you ^___^

@ouafakhalil3395 9 лет назад

Thx a lot 😊 you're videos saved my life 😊😊😊😊

@OriginalRipndip 11 лет назад

helpful? that's an understatement thx dr. salty banana.

@jennyshang 9 лет назад

Hi Mr. Anderson. It has come to my attention that Na-K pumps pump 3 Na+ ions out, and 2 K+ ions in, as opposed to the 3 out and 3 in as illustrated in your animation.