The Mechanism of Muscle Contraction: Sarcomeres, Action Potential, and the Neuromuscular Junction

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  • Опубликовано: 25 янв 2025

Комментарии • 540

  • @PrettyDocAJ
    @PrettyDocAJ 3 года назад +538

    I love how a confusing 2 hour class was summed in an easy 12-minute video! Thank you so much!

    • @katelynschwartz213
      @katelynschwartz213 2 года назад +4

      You couldn't have said it better

    • @umehjulieth
      @umehjulieth Год назад +1

      Lol

    • @bellanmoreno9891
      @bellanmoreno9891 Год назад +1

      So true yikes university you tube 😂is the best

    • @FrancescoRogai
      @FrancescoRogai Год назад +1

      Crazy that I feel exactly the same way, come from sport science and sometimes the explanations of stuff are a bit hard to understand because too confusing, instead this make more sense

    • @__maizmeenansari__3101
      @__maizmeenansari__3101 Год назад +6

      You would not have understand this 12 min vdo without the 2 hr class probably 🫡

  • @thefenerbahcesk4156
    @thefenerbahcesk4156 5 лет назад +742

    A long time ago, when I was in the hell known as organic chemistry, I used to watch this guys videos. Now I'm watching his videos for the MCAT.

    • @Hoodinator17
      @Hoodinator17 4 года назад +8

      Ok. Did u pass the mcat well ?

    • @numarasheed9083
      @numarasheed9083 4 года назад +25

      MCAT!? In india we have to learn this shit in eleventh grade... found this video cuz i couldnt understand anything in class :(

    • @royamovahedi8194
      @royamovahedi8194 4 года назад

      @@numarasheed9083 Aq

    • @TheOldandslow
      @TheOldandslow 4 года назад

      How did you do?

    • @29957fred
      @29957fred 4 года назад +34

      @@numarasheed9083 weird flex but go ahead.

  • @reisswilliams286
    @reisswilliams286 4 года назад +374

    2 hours of lecture, 1 hour of class asking questions, 1 hour of review next class... Students confused.
    Watch this 12 minute video. Concepts understood.

    • @dramatriangle
      @dramatriangle 9 месяцев назад

      Yup

    • @AlexNelson-jo5qv
      @AlexNelson-jo5qv 3 месяца назад +5

      I've always wondered why this was the case. I think i figured it out. Lectures (and lecturers) contain to much information. They are there to provide all the information required to understand a topic, not necessarily in the best way possible. These youtube videos take you through the big picture concepts, and usually in a more dynamic format. Usually at this point, you'll have sat in a lecture, maybe reviewed the content a few times - and not really fully grasped the forest from the trees. These videos help you to cement the concepts, taking all the little details you've consumed along the way, and give them a proper skeleton to bind. That lightbulb moment or wow i get now, is coming from this process. It can happen in reverse, watch a youtube video prior to a lecture that covers the basics or larger concepts. Then in the lecture, you'll have all these little aha moments. Its quite fun (this is also known as priming)

  • @mesozoicperiodvlogs8323
    @mesozoicperiodvlogs8323 2 года назад +123

    I just wanted to thank Professor Dave for helping me succeed in my scientific studies. I am a pre med student struggling to understand the complex inner workings of muscle contraction. I have been studying for at least eight hours now and i am absolutely exhausted, but this was a good final lecture to finish off the evening, and i will be returning back tomorrow to watch this video and others hes posted which are related to it., .thanks again Dave, we all sincerely appreciate you!

    • @umehjulieth
      @umehjulieth Год назад +1

      Please what's a pre med.?

    • @kayo6689
      @kayo6689 Год назад +3

      @@umehjulieth a premed is a student preparing to attend medical college by studying in regular college to meet the prerequisites and prepare for the entrance exams

    • @syndesmos1s
      @syndesmos1s Год назад +3

      @@umehjulieth So there are basically med schools with 6 years of duration, but in case of America you have to go through 2 years of undergraduate course *(=Premed)* + MCAT + med school (4 years), which makes total of 6 anyways.

    • @umehjulieth
      @umehjulieth Год назад

      @@syndesmos1s thanks alot

    • @umehjulieth
      @umehjulieth Год назад

      @@kayo6689 oki cool thanks

  • @aliyawilliams3584
    @aliyawilliams3584 4 года назад +99

    PROFESSOR DAVE sir you just saved my life. No amount of 'thank you's' could amount to how grateful I am for your videos!!

  • @laurenk1139
    @laurenk1139 5 лет назад +122

    Totally cleared things up, my Anatomy and Physiology prof couldn't teach this well in the hour and 15 minutes I spend in that class.

    • @7792pnaurfr
      @7792pnaurfr 2 года назад +1

      Prof dave is great and all but all he did was basically read out the steps. This can be found in physiology books. If you couldn't understand it before it means you weren't paying attention in class.

    • @AKitchell
      @AKitchell 2 года назад +6

      @@7792pnaurfr Reading from a textbook or listening to a lecture isn't a good learning method for some people, however. Sometimes, a video can cause these concepts to "click" within a person's mind in ways that reading from a textbook or listening to a lecture may fail to do. As such, these videos are much appreciated.

  • @muzamilkelam2957
    @muzamilkelam2957 2 года назад +4

    Watched it in 2018 for my 10th grade. Again in 2020 for my 12th grade and now again watching this for MBBS.

  • @houmamkitet9555
    @houmamkitet9555 4 года назад +62

    I wish youtube allowed us to like a video multiple times, everytime you finished a point i went to press the like button only to realise i already pressed it (this happened multiple times)

    • @chestapant1406
      @chestapant1406 3 года назад +2

      Absolutely right

    • @angelisvegan5826
      @angelisvegan5826 3 года назад +2

      You can do something better. You can subscribe to him, share his videos and even better support him🙂🙃

  • @unknownpitch
    @unknownpitch 2 года назад +31

    I'm a zoology student ...
    I struggle a lot😭 by searching details in (Physiology/Mechanism of muscle constraction)
    This is very easy and super details.
    No wasting time like others videos do.
    Thank you very much sir. ❤️❤️❤️❤️
    It really helps ❤️❤️❤️❤️❤️

  • @alexanderdrummond3343
    @alexanderdrummond3343 5 лет назад +640

    If my professor taught this clearly I could keep up with class

  • @anyerysdiaz6100
    @anyerysdiaz6100 3 года назад +2

    This prof knows everything ! Chem, Bio, Physic.. you name it.

  • @Sam48025
    @Sam48025 4 года назад +34

    I'm only on 4:26 and this is already so informative and reinforcing my knowledge, thank you so much!

  • @nyotator75
    @nyotator75 3 года назад

    Thanks!

  • @myunaestheticlife6399
    @myunaestheticlife6399 2 года назад +2

    I watched 2 hours of lecture videos but learned more in 12 min. Thank you so much !!

  • @doricevalery7416
    @doricevalery7416 3 года назад +18

    Just hours from my exam and I find this really helpful. Thank you professor Dave😊

  • @shardemichelcollins8071
    @shardemichelcollins8071 2 года назад +1

    4hrs of lectures was explained perfectly in 12mins.

  • @Dhskzhsjsozb
    @Dhskzhsjsozb 6 лет назад +10

    Thanks a lot professor ! I'm a french biology student and your videos help me have a more global vision and understanding on phenomenas,

  • @chestapant1406
    @chestapant1406 3 года назад +1

    Best tutorials i ever found in my life👍👍👍👍

  • @jonathanreyes211
    @jonathanreyes211 3 года назад

    Hey I can just say this is AMAZING I'm a medical doctor from Latin American and I don't get so much English, but I did, I understood the whole content. Thanks.

  • @princesszinka
    @princesszinka 4 года назад +26

    So clear and interesting. Thank you, Professor.

  • @wornishwasstolen
    @wornishwasstolen Год назад

    you’re so cool, I couldn’t have done it without you professor

  • @Daesma999
    @Daesma999 2 года назад +1

    I learned from these videos more than I've ever learned on biology lessons. Not that our teacher was this bad but we had a lot more basic lessons. I keep learning more and more each video..

  • @BassamN711
    @BassamN711 4 года назад +7

    Prof Dave has just explained a two-hour lecture in a twelve-minute video.
    Can you imagine how incredible that is!!

  • @beans9019
    @beans9019 2 года назад

    You helped me get through 3 chapters of many pages in a few videos. They way you explain things make A+P easier. THANK YOU

  • @conceptcruxbyhrushikeshvel7323
    @conceptcruxbyhrushikeshvel7323 2 года назад +1

    I like the way you presented a complex concept in a simple manner. All the best

  • @bablu4736
    @bablu4736 2 года назад +1

    Wooh superb explanation.... Prof..... Helpful stuff for my NEET exam..... Lots of love from India🇮🇳

  • @abenezerfetsum3632
    @abenezerfetsum3632 2 года назад +2

    I am an engineering student but this was so cool to watch his explanation and the animation dissects and elaborates the topic like a neurosurgeon. This was hella good. 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

  • @madmax6226
    @madmax6226 3 года назад +1

    cleared my concepts in just 12 min.
    love from india..💕

  • @rlr700
    @rlr700 2 года назад

    First video I ever saw from this guy, right before my physiology exam, will problaby come back again and again for many years during my study time since this was amazing.

  • @angieeranee
    @angieeranee Год назад +1

    My professor links your videos with our modules.

  • @muzammilahmed-nb6hx
    @muzammilahmed-nb6hx Год назад

    this man is not earning fame but good deeds ...god bless u❤️

  • @dylanrogers2085
    @dylanrogers2085 3 года назад +4

    Wow this is amazing! You are amazing! You’re such a blessing to your students. If they don’t tell you then I will! I just learned everything for my test. I am tremendously grateful for you! Thank you and god bless!

  • @b.s.bobbyshaw
    @b.s.bobbyshaw 3 месяца назад +1

    Have a BSc Hons in Sports Coaching, Fitness and Exercise. Still learned a couple new things, like the term and component “Sacromeres”. Thanks Prof. Dave 💪

  • @saniaahmad4938
    @saniaahmad4938 3 года назад

    2 hour lecture with the medical uni doctor and confused
    12 minutes with you and absolutely clear

  • @misbahali6433
    @misbahali6433 3 года назад

    This guy is a life (*grade) saver.
    So thankful that i came across his channel.

  • @vincenzofrenda166
    @vincenzofrenda166 4 года назад +1

    Bomb...! So clear and useful and all in 12 mins. Recap at the end on neural contraction topic just the icing on the cake!

  • @cabbage5114
    @cabbage5114 3 года назад

    Best. Educator. On. RUclips.

  • @Bob-fj7lr
    @Bob-fj7lr 2 года назад

    20/10 best video I've seen on this topic easily

  • @chubbybunnyization
    @chubbybunnyization 4 года назад +13

    i hate learning about this type of thing so much because of how much of it needs to be understood on a more conceptual level. But your video and explanation is phenomenal. I still hate this subject matter, but thanks to you I now have a fighting chance of learning it all.

  • @rebeccagonzalez2407
    @rebeccagonzalez2407 4 года назад +5

    Seriously such a helpful video! I appreciate your work so much and I know countless do as well!

  • @AP-nb1uh
    @AP-nb1uh 3 года назад +1

    been struggling with the lecture slides and tutorials for my uni work but this broke it down so well, thank you

    • @mortalmatt2138
      @mortalmatt2138 3 года назад

      Battinson pfp makes this so funny for some reason

  • @michaelmurphy5213
    @michaelmurphy5213 3 месяца назад +7

    In what scenario does a paramedic or nurse need to know this exact process? Serious question, please respond.

    • @naomigwolfe8112
      @naomigwolfe8112 2 месяца назад +2

      By knowing this you can know how any why someone might be having contractions, seizing or lack of movement. Lack various chemicals in our body. Presence of electricity or other reasons will affect the muscles. The contractions also are important to know how they happen.

  • @nillyjan6754
    @nillyjan6754 9 месяцев назад

    I really appreciate you, I studied 11 hours, but here I learned in 15min

  • @laurasuarez2860
    @laurasuarez2860 3 года назад

    Should’ve came to watch Professor Dave first, instead of watching countless other videos. HE UNDERSTOOD THE ASSIGNMENT FOR ME SO I COULD TOO 😭🙏🏼

  • @narendarsingh0072
    @narendarsingh0072 3 года назад +1

    Thank u so much sir.
    After a long search
    Here found the exact explanation in just 12mins ,thanks alot

  • @soniakay2230
    @soniakay2230 6 лет назад +5

    Learnt this last year in 11th Grade, and this recollection was just awesome, even though it's all a lot! :D

  • @hansieheliyagoda2510
    @hansieheliyagoda2510 4 года назад +3

    This honestly saved my grades thankyouuuuuuu! my prof could never

  • @brendandinda4373
    @brendandinda4373 4 года назад +1

    you make my medical life easy and simple thanks so much

  • @RapidBlindfolds
    @RapidBlindfolds 2 года назад +2

    not only easier to understand than a lecture, but absolutely fascinating

  • @vikop4
    @vikop4 4 года назад +2

    This is awesome for review to make sure you understand the big picture. Shared your video with my study partner. Thank you!

  • @alejandranatasha5259
    @alejandranatasha5259 3 года назад +1

    Pretty sure Professor Dave is the man of my dreams! Thank you for your easy to follow videos!

  • @nusamoussa5378
    @nusamoussa5378 3 года назад

    I speak for all those who speaks English as a second langue thank you you have no idea how much you have helped us

  • @whyeeolivia
    @whyeeolivia 2 года назад

    I've watched five different videos explaining muscle contractions and I can finally move on to the next topic lol I really struggled with this concept until professor dave does what he does best...explain!

  • @tsmith8660
    @tsmith8660 3 года назад +2

    I couldn’t understand this when my professor taught it. Thank you 😊

  • @bitty_berry9800
    @bitty_berry9800 8 месяцев назад

    Amazing video you just submerged my whole 2 a&& chapters in 12 minutes. Thank you ❤️😊

  • @uphilldew
    @uphilldew Год назад +2

    watching this as premed🤒🤒🤒tomorrow is my exam
    wish me luck🌠🌠🌠

  • @sulaimanaljabari
    @sulaimanaljabari 6 лет назад +83

    Prof my uni doctor didn't teach us this amount of information in 50 minutes...

    • @Ssiva-zf3pc
      @Ssiva-zf3pc 6 лет назад

      Oh where is prof.Dave and who are you man

  • @kadirkeskin50
    @kadirkeskin50 4 года назад +1

    It is clearly the best and plain video about the muscle contraction mechanism, thanks for your huge work.

  • @22f94
    @22f94 3 года назад

    I’m here just to entertain my spare time, and enrich my curiosity. I definitely enjoyed it.

  • @cookeidough
    @cookeidough 3 месяца назад

    one of the best explanations ive seen THANK YOU

  • @akankshatiwari0105
    @akankshatiwari0105 4 года назад +2

    Thanks and love from India❣️

  • @medicalmania1591
    @medicalmania1591 2 года назад

    Concept is clear
    Thank you so much
    From Bangladesh 🇧🇩

  • @qasimghaffar3562
    @qasimghaffar3562 3 года назад +1

    thanks, sir u learnt a very difficult lecture only in 12 mins ...

  • @venkateshwarluvenkateshwar304
    @venkateshwarluvenkateshwar304 2 года назад +1

    thank u sir for ur golden explanation this is so simple and makes us soo much understsnding

  • @paulinedegala-aranador2073
    @paulinedegala-aranador2073 4 года назад +3

    3 hrs of online lecture I feel like I'm floating with all the information but this 12 min video made me understand all the concepts lol

  • @yourfuturedocburenbeiya
    @yourfuturedocburenbeiya 4 года назад +4

    I enjoy learning from your channels...Your explanations are so clear, thank you SO much!!!

  • @ivoryas1696
    @ivoryas1696 2 года назад +1

    That's... honestly beautiful. How does nature come up with this stuff, man...

  • @finngeometry7570
    @finngeometry7570 Год назад

    Thank you for the video, it helps confused university students such as myself.

  • @abck32c
    @abck32c 10 месяцев назад

    Thanks so much as always for assisting in my revision.

  • @lironi0506
    @lironi0506 3 года назад

    amazing! an entire lecture in one 12 min video! thank you!

  • @ayshashahnawaz8888
    @ayshashahnawaz8888 16 дней назад

    Plz keep Ur channel free to watch 🙏 you are doing great job 👍

  • @Gingervolleyballer11
    @Gingervolleyballer11 2 года назад

    this video could not have been more helpful. thank you thank you thank you!

  • @blooddrunk4957
    @blooddrunk4957 3 года назад

    That man single-handedly saved my Anatomy and Physology grade

  • @Aegon_Targaryen
    @Aegon_Targaryen 3 года назад +2

    Watching From India

  • @abdifatahbudul8467
    @abdifatahbudul8467 Год назад

    This video makes me to understand and get clear concept from physiology😘
    You would never imagine how your lectures save students.

  • @jyothirmaisunkari6662
    @jyothirmaisunkari6662 3 года назад +1

    Well explained!!!! Master🙏

  • @ranvirsaroha553
    @ranvirsaroha553 4 года назад +1

    U r genius professor 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻❤️❤️❤️ from India🇮🇳🇮🇳🇮🇳

  • @martinarenzi4744
    @martinarenzi4744 Год назад +2

    Thank you prof Dave! Please talk also about the last specific topics you mentioned at the end of this video, it would be so interesting ❤

  • @mahamudanasrin2024
    @mahamudanasrin2024 4 года назад

    Thanks a lot sir.....I am physical education's student......this is really helpful for understanding my subject deeply

  • @umehjulieth
    @umehjulieth Год назад

    Thank you so much 💓. Now it is much easier for me to study without having to open thousands of textbooks

  • @headshotcaptain8389
    @headshotcaptain8389 3 месяца назад

    you're literally a godsend!

  • @Musashi.1584
    @Musashi.1584 10 месяцев назад +1

    Class 11th NEET aspirant here thanks for the explanation ❤

  • @galerights8983
    @galerights8983 2 года назад

    as a newbie to this topic, this was a hell to watch

    • @khuziwesithole6719
      @khuziwesithole6719 2 года назад

      Right? And I'm watching right before a test😭

    • @galerights8983
      @galerights8983 2 года назад

      @@khuziwesithole6719 i got past this and now spending my vacation. you got this girl! goodluck on your test

  • @kavetuowen2132
    @kavetuowen2132 Год назад

    you compressed my 50 slides in 13min lesson thank you so much

  • @tishadhingra7424
    @tishadhingra7424 4 года назад

    Very nice video 👌 and the amazing part is that he has summarised all this in merely 12min.

  • @sathwikairagavarapu1391
    @sathwikairagavarapu1391 2 года назад +1

    Great job viewing form India 🇮🇳 sir

  • @JERALDMENDOZA-k9y
    @JERALDMENDOZA-k9y 3 месяца назад

    Best explanation EVERRRRRRRR!

  • @kirtisharma8609
    @kirtisharma8609 5 лет назад +3

    amazingly explained with lots n lots of efforts....thankyou so much
    please put some videos related to cell cycle

  • @DanielZamini-iw5jw
    @DanielZamini-iw5jw 9 месяцев назад

    Fluent , awesome and useful. Thanks prof.Dave ❤❤

  • @emmatyler5006
    @emmatyler5006 3 года назад

    your explanation is easy to understand

  • @diwitdharpatitripathi6782
    @diwitdharpatitripathi6782 2 года назад +1

    Staggering amount of chemistry wow that's great

  • @sandragamal8727
    @sandragamal8727 4 года назад

    Congratulations on 1M subs prof Dave.

  • @chmith27
    @chmith27 4 года назад +2

    er doc wanting a refresher on basic concepts- thanks so much, great job

  • @SalmanAhmed-k8p
    @SalmanAhmed-k8p Год назад

    professor dave you are a life savour

  • @Caliparri
    @Caliparri 2 года назад

    You’re amazing Professor

  • @aroundandround
    @aroundandround 10 месяцев назад +1

    A few minutes in, you reach knowledge equilibrium where your short-term memory is forgetting recently learned terms as quickly as it is acquiring new ones.

  • @majesticco.4700
    @majesticco.4700 4 года назад +1

    You have actually save me. I kept trying to wrap my head around this but nothing would stick!

  • @mehrunnisamir4855
    @mehrunnisamir4855 4 года назад

    I cant understand any of ma topics wd out Ua vedio ❤️Thanks alot sir lots of respct 💐

  • @jessicamardoyan3643
    @jessicamardoyan3643 3 года назад +2

    Thank you so much for this! I was so confused about muscle contraction but the way you explained it made so much sense!

  • @nirmalraja1258
    @nirmalraja1258 3 года назад +1

    In college lecture is for 2hours , Prof Dave completes in 12mins , LEGENDS : with 1.5X Speed completes in just 6mins