Big Guns: The Muscular System - CrashCourse Biology #31

Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax.
Table of Contents
1) Cardiac, Smooth, & Skeletal Muscles 01:09
2) Muscle Anatomy 02:03
a) Muscle Fibers 03:07
b) Myofibrils 04:15:1
c) Sarcomeres 04:19:1
d) Myofilaments 04:37:2
3) Biolography 05:37:1
4) Sliding Filament Model 07:47
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Пікірлер: 1 100

  • @Spectolect
    @Spectolect9 жыл бұрын

    Major kudos to Amber, the head of graphics. A visual learner like me cannot thank her enough!

  • @brbrerolling

    @brbrerolling

    9 жыл бұрын

    I'm in the same place!

  • @Amandakaymtz
    @Amandakaymtz7 жыл бұрын

    how did people 20 years ago even pass their classes without youtube channels like this one?

  • @sabey5126

    @sabey5126

    7 жыл бұрын

    I've been researching into human anatomy and discovered a fantastic resource at Anatomy Blueprint Pro (check it out on google)

  • @zdbossz

    @zdbossz

    7 жыл бұрын

    Еxрlooоsivе musclее grоwth in a bоttle? Ditсh thе unhеalthу Рrе-wоrkout pоwdеrs. Mах yоur rеsults with this рroven to work musclе building Stасk! twitter.com/d925e3c45d857fb14/status/742668391975096320 Big Guns Thе МММusссculаr Sуstеm CrаshCourse Biоlоgу 31

  • @lalalalalala7849

    @lalalalalala7849

    7 жыл бұрын

    Amanda Martinez they cut up bodies for research

  • @unitechtherapyy1453

    @unitechtherapyy1453

    7 жыл бұрын

    they actually studied, maybe?

  • @arjanharjani3109

    @arjanharjani3109

    7 жыл бұрын

    I was able to learn about all the muscles and bones and everything else through pure reinforcement and practicing with my classmates- our books did not even have much color but we used our imagination and used the cadavers and ourselves to keep ahead of the curve. Med school was fun because we chose to be excited about what we learned and not pressured because of grades!

  • @crashcourse
    @crashcourse12 жыл бұрын

    we are attempting to cover the topics that would be taught in a year long AP level Biology class, equivalent to a 101 level in a college or university. so it will be more complex than general high school biology.

  • @louisthedonothing69

    @louisthedonothing69

    4 жыл бұрын

    You should write a book

  • @gingergiggles
    @gingergiggles9 жыл бұрын

    God, this is so much easier than listening to a robot voice explain this. You make studying for my exams way more fun, dude.

  • @KatherinePierce_81

    @KatherinePierce_81

    7 жыл бұрын

    Emma Galindo lol

  • @triciareneetlcprofitness7045

    @triciareneetlcprofitness7045

    7 жыл бұрын

    I totally agree!

  • @tamaraherman7073
    @tamaraherman70739 жыл бұрын

    First of all, thank you so much. Second of all, for those who think he is talking too fast, you can go to your viewing settings and lower the speed- not only is it slower, but it's slightly hilarious.

  • @hptruefan

    @hptruefan

    9 жыл бұрын

    omg thanks xD

  • @ovemesojude7445

    @ovemesojude7445

    9 жыл бұрын

    hw pls?

  • @najeyrifai1134

    @najeyrifai1134

    9 жыл бұрын

    How it feels to watch Crash Course while stoned.

  • @daaaniphantom

    @daaaniphantom

    9 жыл бұрын

    Tamara Rostro I tried it. HAHAHAHA thank you so much for bringing this to my attention

  • @danielwong2395

    @danielwong2395

    5 жыл бұрын

    😁🤣🤣🤣🤣LOL

  • @crashcourse
    @crashcourse12 жыл бұрын

    Thanks. The animations for Biology are actually created entirely by our Creative Director, Amber Bushnell, with the help of a consulting biologist, Brandon Jackson. Thought Bubble does the animations for World History exclusively.

  • @joet5342
    @joet53429 жыл бұрын

    Always astounded at how Hank and the team make science, especially complex anatomical functions, so accessible, when so many mind numbing videos on the internet bang on for hours with complex 'shit' for want of a better word. Of course science isn't 'easy', there'd be no fun if it were no challenge, but these people give you all the jargon and all the action without all the boredom. Great show.

  • @SuzieNunes

    @SuzieNunes

    9 жыл бұрын

    Joe T So true indeed!!! I am loving the challenge, Hank and the team really make it FUN!!

  • @michel4743
    @michel474310 жыл бұрын

    Two small questions: - Do you workout a little or not at all? - If you don't workout: How much did your arm hurt the next days from all those curl reps?

  • @sarahk6926

    @sarahk6926

    10 жыл бұрын

    LOL ikr I thought he was going to stop much earlier!

  • @TheSkullcrusher73

    @TheSkullcrusher73

    10 жыл бұрын

    Pretty sure that weight is probably nothing for him.

  • @maurco007
    @maurco00710 жыл бұрын

    He forgot to mention that muscles are antagonistics. Therefore, if one contracts the other one relaxed. So ATP IS REQUIRED ALWAYS

  • @nalenenlal

    @nalenenlal

    10 жыл бұрын

    Thank you

  • @Zizzyyzz

    @Zizzyyzz

    4 жыл бұрын

    I doubt he "forgot". Lol.

  • @squatwedgiez
    @squatwedgiez8 жыл бұрын

    I can't thank you enough for this, this is the future of education. Education should not cost 100k with the internet. Free education for all!

  • @homeiswonderland
    @homeiswonderland9 жыл бұрын

    Cramming for an in class paper I have to write on this tomorrow. Finally understanding it! Thank you so much!

  • @aniridhbakshi
    @aniridhbakshi9 жыл бұрын

    My uni prof made this WAY more complicated YOU ROCK!

  • @jorgepadua9124
    @jorgepadua91249 жыл бұрын

    I got it! I got it! After hours and hours of reading, I HAVE GOT IT! THANK YOU!

  • @randomtrucks
    @randomtrucks9 жыл бұрын

    Wait, our muscle filaments need ATP in order to relax? WHOOoooaaahhhhhhhhhhhhhhh that's why dead bodies are stiff cool

  • @AnuRMusicVideos

    @AnuRMusicVideos

    5 жыл бұрын

    WOAH I never realised that!!!!!!

  • @julianewberry5468
    @julianewberry54687 жыл бұрын

    I have been struggling to understand this for over a week, and you managed to explain it clearly in 12 minutes. Well done. Very well done.

  • @clarecohen399
    @clarecohen3999 жыл бұрын

    I really want to thank you for these videos. Without you I would be lost in my anatomy class. You're the reason I'm getting an A in my class. Not only do you clarify everything for me but you make learning FUN and enjoyable. PLEASE KEEP MAKING VIDEOS!!!

  • @TheKILLERDOG712
    @TheKILLERDOG7128 жыл бұрын

    "One of the sexiest things that happen in your body...other than sex"

  • @izzyschell721

    @izzyschell721

    8 жыл бұрын

    We watch this in school

  • @miellefilms

    @miellefilms

    5 жыл бұрын

    @@izzyschell721 Omg, yea

  • @thatstupidthomasfan

    @thatstupidthomasfan

    4 жыл бұрын

    Time Mark?

  • @jazzram_

    @jazzram_

    4 жыл бұрын

    @@thatstupidthomasfan 5:27

  • @thatstupidthomasfan

    @thatstupidthomasfan

    4 жыл бұрын

    @@jazzram_ Thank You.

  • @davelangford2439
    @davelangford243910 жыл бұрын

    Probably the best CC video I've watched. Hank actually spoke at a normal speed!!

  • @nydiahernandez2127
    @nydiahernandez212710 жыл бұрын

    you teach me WAAAAAAYYYYYY better than my science teacher!!

  • @knoxc4248

    @knoxc4248

    4 жыл бұрын

    man that comment was 6 yrs ago... how di that turn out?

  • @PeninsulaPaintingProjects
    @PeninsulaPaintingProjects8 жыл бұрын

    You're crazy but you're a lot better than my tutor so thank you.

  • @Omisslewis1976

    @Omisslewis1976

    7 жыл бұрын

    I used his videos in my classes b/c I love them, he makes it fun!

  • @crystalsdynamicwellness8239
    @crystalsdynamicwellness82398 жыл бұрын

    this video saved my life!!! trying to understand the myosin and actin filaments from my text book made me want to cry and jump off a bridge in tandem!!! Now I totes get it thanks to the schnazzy sliding filament model! Thank you snarky smart guy... you are my hero!

  • @andreaespina474
    @andreaespina47410 жыл бұрын

    gotta love you guys, thank you for putting all this content together into an amazingly understandable way.

  • @flubbycat1724
    @flubbycat17249 жыл бұрын

    It's amazing how all the little parts (both visible and microscopic) inside of you are a big deal on helping you function and live against things outside the body or to adapt the body to the environment.

  • @amber854
    @amber8549 жыл бұрын

    This channel is an absolute life save. I've an ISA on muscles tomorrow and I've been trying to get my head around the topic for days with no luck. I rewatched this a few times and then made notes as I went along, and finally its making sense! All is not lost! so THANK YOUUUUU!!!!!

  • @CaliGirlFromKZ
    @CaliGirlFromKZ10 жыл бұрын

    I am SO grateful for this and for other crash course bio videos!

  • @SavourySnape
    @SavourySnape12 жыл бұрын

    So you managed to explain basic sliding filament theory in the space of 12 minutes from the beginning, while being absolutely engaging and funny at the same time? Better than any lecturer with any amount of experience that I've seen...

  • @toinfinityandpandas1372
    @toinfinityandpandas13727 жыл бұрын

    You have no idea how appreciative I am of this channel. It's helped me go through A&P, Microbio, Bio l and now finally...bio ll 😂 you guys are a godsend

  • @spencerhollingsworth6573
    @spencerhollingsworth65739 жыл бұрын

    Thank you SOO much for doing these videos! You've made learning this information so much better. Keep up the hard work.

  • @sircuban5852
    @sircuban58526 жыл бұрын

    Who else studying for their bio exam

  • @heatherstubbs5466
    @heatherstubbs54669 жыл бұрын

    Great video! Easy to understand! I need more of these videos to get me through A&P!

  • @princess435010
    @princess4350109 жыл бұрын

    Great work! I really love how much help these videos can be.

  • @katherinezhao5809
    @katherinezhao58097 жыл бұрын

    Thank you so much for this awesome episode!!! And the result that I got was also fantastic! The first time I got 100% in my Biology assessment!!! Thanks again for crash course!!! Keep on doing it!!!

  • @legitfacts6731
    @legitfacts67319 жыл бұрын

    Moral of the video, if you want a genius son then just name him Huxley :D

  • @Brownzz07
    @Brownzz079 жыл бұрын

    Hank, you da real MVP!

  • @jonettekruk3156
    @jonettekruk31567 жыл бұрын

    Thank you so much for your videos. They are so much help! I like the way you compare processes of the body with other scenarios.

  • @TechWeLove
    @TechWeLove6 жыл бұрын

    I feel that all Anatomy Courses should have tons of videos like this, but also focused at helping students pass practicals, and exams. Find professors who put their lectures into video presentations. That will help a ton.

  • @danielpetracci3826
    @danielpetracci38268 жыл бұрын

    This was so helpful! What would I do without Crash Course?

  • @putrisha94
    @putrisha9410 жыл бұрын

    Here for my anatomy test. Thank God for CrashCourse cuz I didn't understand shit from that lecture >.

  • @LouanneDalBello
    @LouanneDalBello9 жыл бұрын

    Crash Course is so helpful and entertaining! It provides such a great framework for learning and review. Hank, you're brilliant and hilarious. Thank you.

  • @ninjabunny323
    @ninjabunny32310 жыл бұрын

    Thank you Hank! :) you're the best, the visuals really help me a lot!

  • @Orangemocha4
    @Orangemocha410 жыл бұрын

    Learned more here than in my class - plus the guy was really cute.

  • @shilpakaran1
    @shilpakaran110 жыл бұрын

    Hank! your ass grab...spot on!

  • @funkypasta
    @funkypasta9 жыл бұрын

    Brilliant Hank! You've once again made the subject less complex and prevented me from tearing my hair out!

  • @mstapleton49
    @mstapleton499 жыл бұрын

    your videos are so amazing. they help me understand all the major concepts I need in A&P to pass exams. plus, you're pretty hilarious. THANK YOU!

  • @r_herobunny
    @r_herobunny10 жыл бұрын

    Hank and his hot pockets....

  • @786shabz789
    @786shabz7899 жыл бұрын

    U forgot sarcrolemme and sarcoplasm and the h,m,a and z zones ( I think it's just my a level course that I need to remember all this stuff damn there's too many sarcro

  • @reno2934

    @reno2934

    9 жыл бұрын

    786shabz789 Theres 3 sarco things (atleast in level 1 bio which I assume your in), not that many :p

  • @christinewithak7903
    @christinewithak790310 жыл бұрын

    I think these descriptions are amazing, so easy to understand for a "mature age" and previously uneducated student. Thank you.

  • @rachelwalton813
    @rachelwalton8138 жыл бұрын

    Hank, as usual, a really great tutorial. Simple, FUNNY and really interesting. Thank you!

  • @BittiKit
    @BittiKit9 жыл бұрын

    Thank you so much. Anatomy was confusing me so much a few minutes ago, and this is definitely helping me to better understand the material.

  • @rachaelrausch8023

    @rachaelrausch8023

    9 жыл бұрын

    ME TOO! This was like heaven 😂😂

  • @daaaniphantom
    @daaaniphantom9 жыл бұрын

    1:32 I'm dying hahaha

  • @lamiyam.899

    @lamiyam.899

    8 жыл бұрын

    +Dani elle :D ikr..

  • @alexandrialapic5715
    @alexandrialapic57159 жыл бұрын

    This just blew my mind! love these crash course videos. Lifesavers!

  • @JoeAuerbach
    @JoeAuerbach12 жыл бұрын

    One of my favorites lately. This is one of the best things that happens in the body. Totally fascinating.

  • @guchichan
    @guchichan9 жыл бұрын

    This makes A&P fun to learn!!! Haha ☺️

  • @sincitycapital

    @sincitycapital

    9 жыл бұрын

    Congratulations you're in AP want a cookie?

  • @heatherstubbs5466

    @heatherstubbs5466

    9 жыл бұрын

    Steven it's not AP it's A&P..... they are not the same.

  • @sincitycapital

    @sincitycapital

    9 жыл бұрын

    That's nice

  • @heatherstubbs5466

    @heatherstubbs5466

    9 жыл бұрын

    ok, you're funny, you get a pass

  • @ASRMN27

    @ASRMN27

    8 жыл бұрын

    +Steven someones salty

  • @PattyT942
    @PattyT9428 жыл бұрын

    ATP in the Hisoooouse!!!!!!

  • @Prosperroify
    @Prosperroify8 жыл бұрын

    You've mastered communicating potentially difficult stuff. Really helps me prepare and review. ty ty ty!

  • @saraho2255
    @saraho225510 жыл бұрын

    This is magically helpful. Thank you Hank!!

  • @gr3g0rus
    @gr3g0rus9 жыл бұрын

    "Like middle school students at a formal dance," Haha perfect.

  • @jennypenny4212
    @jennypenny42129 жыл бұрын

    I like to eat muscle fascicles 🍗🍖

  • @MaryBrooke

    @MaryBrooke

    6 жыл бұрын

    I will never look at a steak the same way again.

  • @AnuRMusicVideos

    @AnuRMusicVideos

    5 жыл бұрын

    I mean...what did you think steak was?

  • @hiffahyphae6707

    @hiffahyphae6707

    4 жыл бұрын

    Anu R When I was younger (4 or 5) I used to think there was a certain part of an animals body that was the meat we eat. Man was I stupid

  • @SuzieNunes
    @SuzieNunes9 жыл бұрын

    Great overview - and so hilarious. I simply enjoy having fun to understand all the events at the neuromuscular junction. Thank you so much!! :-)

  • @naecon5293
    @naecon529310 жыл бұрын

    hank, you have no idea how much these videos have helped me i'm on my way to becoming a nurse and these have helped my study tremendously!!! thank you so so so much!! DFTBA :)

  • @justinweng3849
    @justinweng38497 жыл бұрын

    "pent up frustration" "groping" this dude is really thirsty amirite lmao

  • @aykayjk
    @aykayjk10 жыл бұрын

    Why can't Hank be my teacher??? My school has 2 anatomy teachers but I got the sucky one and tomorrow it's my final and he didn't help anything.

  • @NuUnlimited

    @NuUnlimited

    10 жыл бұрын

    Hank would be the best teacher EVAHHHHH!

  • @NeonsStyleHD

    @NeonsStyleHD

    10 жыл бұрын

    Why don't you show this video to your teacher, he might learn how to teach better, and thus be a better teacher and that means you will like him more and therefore you will learn more and enjoy to classes more. Don't however tell him he sux as a teacher as that will assuredly get you bad grades!.

  • @katieskye7426
    @katieskye74266 жыл бұрын

    I think I love him 😂 he’s so funny and also saving my life this semester

  • @defydog
    @defydog12 жыл бұрын

    I learnt about this when I was doing a course to become a fitness instructor. I remember taking several lessons to learn less about the process than you taught in under 15 minutes. Thankyou

  • @madidrenowatz828
    @madidrenowatz8288 жыл бұрын

    I UNDERSTAND MUSCLES NOW

  • @indra4325
    @indra432510 жыл бұрын

    i have a serious crush on Hank, like can i marry you??!? haha

  • @patplayz7752
    @patplayz77524 жыл бұрын

    I just wanna get rid of school and I can’t thank you enough for helping me getting rid of my worst nightmare.

  • @boredoutofmymindize
    @boredoutofmymindize11 жыл бұрын

    My IB biology teacher used this video in class. So much more helpful than all those stuffy old videos from the late 90s with boring voice overs on lame animations. I actually learned a lot. Thank you so much for making these.

  • @greg77389
    @greg773897 жыл бұрын

    Where did Hank find that stunt double to work out for him?

  • @VictorVivex

    @VictorVivex

    7 жыл бұрын

    greg77389 Assassin's Creed

  • @bernardogrosse7804
    @bernardogrosse78048 жыл бұрын

    The best way gain muscle mass fast there Gain Weight-F

  • @warrengallogly4994

    @warrengallogly4994

    8 жыл бұрын

    +Bernardo Grosse I understand this program is only for man?

  • @troyryans2316

    @troyryans2316

    8 жыл бұрын

    +Bernardo Grosse This man knows what he is talking

  • @damianoler9226

    @damianoler9226

    8 жыл бұрын

    +Bernardo Grosse it's incredible

  • @brunathehuman
    @brunathehuman12 жыл бұрын

    I have a test on muscles this saturday and this video potentially saved my grades. Thank you so very much, Hank! Great timing!

  • @ruddypaulino5694
    @ruddypaulino56946 жыл бұрын

    1 month in 13 mins. Thanks man. You're saving grades every day!

  • @Tibialisanterior
    @Tibialisanterior5 жыл бұрын

    I never understand the bits where he talks about ATP and ADP Please can someone explain like im 5 aha. 😭😭😭 Anywaysss GREAT VIDEEOOOOO!!!!

  • @crow4834

    @crow4834

    5 жыл бұрын

    ATP broken down is ADP and a phosphate

  • @crow4834

    @crow4834

    5 жыл бұрын

    When the third phosphate is removed from ATP, you get ADP. The molecule has much less chemical energy, because the high energy bond between the last 2 phosphates has been broken.

  • @KurdishFalconPKK
    @KurdishFalconPKK10 жыл бұрын

    Pause at 0:01 for the fright of your life.

  • @rondanicolay7493
    @rondanicolay749310 жыл бұрын

    I showed this to my massage students it really helped them so much..thanks for making learning about muscles fun !!

  • @waynetrinklein5938

    @waynetrinklein5938

    9 жыл бұрын

    I did the same! Really fun stuff :)

  • @kat_the_ot
    @kat_the_ot10 жыл бұрын

    Found this (or should I say re-found this) just in time for my exam this week! And thanks to Hank it makes more sense than my A&P teacher ever could. Granted there was some stuff left out (A band, I band, Ach to name a few) but it makes so much more sense now!

  • @DivineZeal
    @DivineZeal8 жыл бұрын

    nursing school entrance exam 90/90 here i come

  • @madhu3dots
    @madhu3dots4 жыл бұрын

    Who is watching this during corona crisis?

  • @Abominatrix650
    @Abominatrix6509 жыл бұрын

    I've had 2 lectures on this so far and I've understood more with this video than I did in those lectures. But in all fairness, the lectures didn't have pause and rewind features and this video doesn't require me to get up early and have minimal breakfast to attend!

  • @My2ndnephew
    @My2ndnephew12 жыл бұрын

    I'm really glad you videotape these. It makes it possible for me to repeat parts of your lecture I miss because I find myself concentrating on moving my muscles and thinking about what happens under the skin cover.

  • @RodeyMcG
    @RodeyMcG12 жыл бұрын

    It is so impressive how much you covered in 12 minutes, and how well you covered it! It took me at least of week of lectures to understand that before.. You even managed to cover rigor mortis! Nice!

  • @hotelhero4193
    @hotelhero419311 жыл бұрын

    Amazing videos guys. Watched a lot of them now and they are all very good at getting the info across. Studying to be a personal trainer and doing hnd level fitness. Again, great videos :)

  • @joanneesposito3295
    @joanneesposito32956 жыл бұрын

    Great series of videos! Thanks.

  • @kevinledezma2919
    @kevinledezma29198 жыл бұрын

    this is so helpful. the animation makes it very clear. thank you crash course

  • @roohullahbukhari1557
    @roohullahbukhari15578 жыл бұрын

    I never learned physiology in the class from proffessor who used to to teach us... it's u man who helped me master it....

  • @shonacole2124
    @shonacole21247 жыл бұрын

    he makes it so easy to understand-I thank you for that

  • @ryanashburn7831
    @ryanashburn78319 жыл бұрын

    Subscribed! I just want to say wow. I'm working on my Personal Training Certification With The American Council on Exercise and all though I understood all of this before watching I want to say thanks for making it so simple for simpler minds like my own lol. You guys rock and I look forward to watching more!

  • @dwaynefrancis97
    @dwaynefrancis979 жыл бұрын

    hank is honestly the best!!!!

  • @samruddhisonkar943
    @samruddhisonkar94310 жыл бұрын

    ohhh goshhhh....i m luving it.....ur way of explanation is justt awsome......thnx hank!!!

  • @margaretakankono9061
    @margaretakankono90619 жыл бұрын

    amazing, love CrashCourse, make my medicine simple...Thanks Doc

  • @ESPof-rdgroup
    @ESPof-rdgroup8 жыл бұрын

    Just so very well explained and entertaining. Thanks guys!

  • @spinthepickle1244
    @spinthepickle12447 жыл бұрын

    Made so much more sense than the 4 times my instructor went over it in class. Thank you!

  • @xxmaggie20xx
    @xxmaggie20xx8 жыл бұрын

    Thank you!!!! so much, You are such a life saver. Best video I have seen entertaining and very easy to understand. Love it

  • @pausetv5639
    @pausetv563912 жыл бұрын

    Much respect, thank you for your easy to understand answer.

  • @FR2846
    @FR284610 жыл бұрын

    Thank you :D the animations really help

  • @lottyluck8107
    @lottyluck81078 жыл бұрын

    Have my biology A level exam tomorrow and despite going over my muscle notes again and again nothing had gone in. Finally understand contraction and anatomy of muscles. Thank you!

  • @arymillarosewood8774
    @arymillarosewood877410 жыл бұрын

    So helpful. Thank you for doing these videos.

  • @wafflesmartano
    @wafflesmartano10 жыл бұрын

    Amazing presentation amigo. The illustrations are very helpful as well. Keep up the awesome work.

  • @HelenA-un8co
    @HelenA-un8co8 жыл бұрын

    Crash course saved my grade in Bio II. I am so so so so grateful towards you guys for making videos that I actually learn from!!!

  • @AshokAshok-rg1jz

    @AshokAshok-rg1jz

    7 жыл бұрын

    muscular energy picture

  • @ghnunes
    @ghnunes8 жыл бұрын

    You! For president. Presentation on the subject in 3 days and you made it possible.