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

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  • Опубліковано 17 чер 2024
  • We've learned about the types of muscle, including skeletal muscle, and we know then when these muscles contract, we are able to move our bodies around. But how exactly does this happen on the molecular level? There is an astonishing amount of chemistry happening to make this work, so let's dive into those sarcomeres and take a look at the neuromuscular junction!
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КОМЕНТАРІ • 495

  • @reisswilliams286
    @reisswilliams286 4 роки тому +288

    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.

  • @PrettyDocAJ
    @PrettyDocAJ 3 роки тому +412

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

    • @katelynschwartz213
      @katelynschwartz213 Рік тому +3

      You couldn't have said it better

    • @umehjulieth
      @umehjulieth Рік тому

      Lol

    • @bellanmoreno9891
      @bellanmoreno9891 Рік тому +1

      So true yikes university you tube 😂is the best

    • @FrancescoRogai
      @FrancescoRogai Рік тому +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 9 місяців тому +3

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

  • @thefenerbahcesk4156
    @thefenerbahcesk4156 4 роки тому +578

    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 3 роки тому +3

      Ok. Did u pass the mcat well ?

    • @numarasheed9083
      @numarasheed9083 3 роки тому +21

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

    • @royamovahedi8194
      @royamovahedi8194 3 роки тому

      @@numarasheed9083 Aq

    • @TheOldandslow
      @TheOldandslow 3 роки тому

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    • @29957fred
      @29957fred 3 роки тому +29

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  • @aliyawilliams3584
    @aliyawilliams3584 4 роки тому +87

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

  • @alexanderdrummond3343
    @alexanderdrummond3343 4 роки тому +629

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

  • @mesozoicperiodvlogs8323
    @mesozoicperiodvlogs8323 2 роки тому +108

    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 Рік тому

      Please what's a pre med.?

    • @kayo6689
      @kayo6689 Рік тому +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

    • @anonymisis
      @anonymisis Рік тому +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 Рік тому

      @@anonymisis thanks alot

    • @umehjulieth
      @umehjulieth Рік тому

      @@kayo6689 oki cool thanks

  • @princesszinka
    @princesszinka 3 роки тому +26

    So clear and interesting. Thank you, Professor.

  • @Dhskzhsjsozb
    @Dhskzhsjsozb 5 років тому +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,

  • @Daesma999
    @Daesma999 2 роки тому +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..

  • @houmamkitet9555
    @houmamkitet9555 4 роки тому +50

    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 роки тому +2

      Absolutely right

    • @angelisvegan5826
      @angelisvegan5826 3 роки тому +2

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

  • @myunaestheticlife6399
    @myunaestheticlife6399 2 роки тому +1

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

  • @doricevalery7416
    @doricevalery7416 2 роки тому +16

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

  • @laurenk1139
    @laurenk1139 4 роки тому +105

    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.

    • @itsgonnabeanaurfromme
      @itsgonnabeanaurfromme Рік тому +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.

    • @draco4569
      @draco4569 Рік тому +3

      @@itsgonnabeanaurfromme 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.

  • @beans9019
    @beans9019 Рік тому

    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

  • @chubbybunnyization
    @chubbybunnyization 4 роки тому +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.

  • @Sam48025
    @Sam48025 4 роки тому +33

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

  • @rebeccagonzalez2407
    @rebeccagonzalez2407 3 роки тому +5

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

  • @kadirkeskin50
    @kadirkeskin50 4 роки тому +1

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

  • @rlr700
    @rlr700 2 роки тому

    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.

  • @jessicamardoyan3643
    @jessicamardoyan3643 2 роки тому +2

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

  • @vikop4
    @vikop4 4 роки тому +2

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

  • @yourfuturedocburenbeiya
    @yourfuturedocburenbeiya 3 роки тому +4

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

  • @indianassassin849
    @indianassassin849 3 роки тому +3

    Really great. This vid. Included every single thing that I wanted to know.

  • @RapidBlindfolds
    @RapidBlindfolds Рік тому +2

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

  • @alejandranatasha5259
    @alejandranatasha5259 3 роки тому +1

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

  • @conceptcruxbyhrushikeshvel7323
    @conceptcruxbyhrushikeshvel7323 2 роки тому +1

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

  • @soniakay2230
    @soniakay2230 5 років тому +5

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

  • @unknownpitch
    @unknownpitch Рік тому +30

    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 ❤️❤️❤️❤️❤️

  • @lironi0506
    @lironi0506 2 роки тому

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

  • @martinarenzi4744
    @martinarenzi4744 Рік тому +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 ❤

  • @iamaman717
    @iamaman717 2 роки тому

    Clearly explain the complicated muscle contraction! Thanks Prof. Dave!

  • @AP-nb1uh
    @AP-nb1uh 3 роки тому +1

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

    • @mortalmatt2138
      @mortalmatt2138 2 роки тому

      Battinson pfp makes this so funny for some reason

  • @thirdsakkarjonboon2695
    @thirdsakkarjonboon2695 3 роки тому +1

    This explanation is made and described orderly and clearly, thanks for sharing us.

  • @whyeeolivia
    @whyeeolivia Рік тому

    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!

  • @vincenzofrenda166
    @vincenzofrenda166 3 роки тому +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!

  • @BassamN711
    @BassamN711 3 роки тому +7

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

  • @bulletogen5742
    @bulletogen5742 3 роки тому

    Thanks a lot professor , I was not able to understand this concept earlier but after watching this video I understood it completely

  • @yhngmo8493
    @yhngmo8493 2 роки тому +1

    This was so easy and clear to understand. Thank you!

  • @anyerysdiaz6100
    @anyerysdiaz6100 2 роки тому +1

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

  • @misbahali6433
    @misbahali6433 2 роки тому

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

  • @narendarsingh0072
    @narendarsingh0072 2 роки тому +1

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

  • @abenezerfetsum3632
    @abenezerfetsum3632 2 роки тому +1

    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. 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

  • @wornishwasstolen
    @wornishwasstolen 7 місяців тому

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

  • @dylanrogers2085
    @dylanrogers2085 2 роки тому +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!

  • @bitty_berry9800
    @bitty_berry9800 Місяць тому

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

  • @abck32c
    @abck32c 2 місяці тому

    Thanks so much as always for assisting in my revision.

  • @chmith27
    @chmith27 3 роки тому +2

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

  • @umamahtahir2321
    @umamahtahir2321 3 роки тому +1

    Your lectures helped a lot thnx for clearing out concepts.. interesting animation and informative yet entertaining content

  • @saniaahmad4938
    @saniaahmad4938 3 роки тому

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

  • @22f94
    @22f94 2 роки тому

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

  • @brendandinda4373
    @brendandinda4373 3 роки тому +1

    you make my medical life easy and simple thanks so much

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    @abdifatahbudul8467 Рік тому

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

  • @DanielZamini-iw5jw
    @DanielZamini-iw5jw 2 місяці тому

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

  • @Gingervolleyballer11
    @Gingervolleyballer11 Рік тому

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

  • @leidygoldstein6767
    @leidygoldstein6767 2 роки тому

    Thank you so much! It was such a great summary. I'm ready for the exam

  • @rishuraj7338
    @rishuraj7338 2 роки тому

    Thanks a lot Sir for making this concept more easy to learn

  • @tsmith8660
    @tsmith8660 2 роки тому +2

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

  • @DanielleVanNess-go9nz
    @DanielleVanNess-go9nz 6 місяців тому

    You rock! I was stressing this chapter and this video gave me an actual understanding! Thank you

  • @chestapant1406
    @chestapant1406 3 роки тому +1

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

  • @bartholomewkamlewe3073
    @bartholomewkamlewe3073 2 роки тому

    Much appreciate the detailed explanations in this video

  • @hansieheliyagoda2510
    @hansieheliyagoda2510 4 роки тому +3

    This honestly saved my grades thankyouuuuuuu! my prof could never

  • @laurasuarez2860
    @laurasuarez2860 2 роки тому

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

  • @omolabakeomotosho2104
    @omolabakeomotosho2104 2 роки тому

    Thank you Prof. Dave for this video.

  • @Sheistenzin
    @Sheistenzin 3 роки тому

    Everything I needed to know is here! Thank u

  • @aidanrabinowitz8155
    @aidanrabinowitz8155 3 роки тому +1

    My dude, this is a great video. Thank you.

  • @tishadhingra7424
    @tishadhingra7424 3 роки тому

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

  • @kylefleck7342
    @kylefleck7342 5 років тому +1

    seriously i love you grateful for you

  • @Bob-fj7lr
    @Bob-fj7lr Рік тому

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

  • @jasminrichards5505
    @jasminrichards5505 3 роки тому

    Thanks a lot for your teachings I’m learning a lot by watching your videos I’m at studying to become an RN and taking Anatomy and Physiology 1 ...

  • @outrage_swampert979
    @outrage_swampert979 5 років тому +1

    Helpful knowledge! Thank you

  • @dominicparagas7874
    @dominicparagas7874 4 роки тому +3

    Thank you for sharing your knowledge!!!!!!!

  • @belencervantes8642
    @belencervantes8642 3 місяці тому

    Thank you so much professor dave! Your videos are always so helpful

  • @sandragamal8727
    @sandragamal8727 3 роки тому

    Congratulations on 1M subs prof Dave.

  • @hansakamaduwantha1558
    @hansakamaduwantha1558 2 роки тому

    very clear ,perfect explanation, thank you

  • @christapenman4240
    @christapenman4240 Рік тому

    I can’t wait to try this!

  • @sharifahnalule6478
    @sharifahnalule6478 2 роки тому

    This was amazing! Thank you professor

  • @venkateshwarluvenkateshwar304
    @venkateshwarluvenkateshwar304 Рік тому +1

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

  • @melissasamerjai644
    @melissasamerjai644 Рік тому

    This was soooooo helpful! Thanks professor dave🥰

  • @frehiwotgossaye1639
    @frehiwotgossaye1639 4 роки тому +1

    wow that is so clear thank you keep it the good work.

  • @user-zp9cw2fs7e
    @user-zp9cw2fs7e Рік тому

    professor dave you are a life savour

  • @nanadarkoampem
    @nanadarkoampem 3 роки тому

    Your teaching and explanation are great.

  • @komaldiptianandmaisuriya4301
    @komaldiptianandmaisuriya4301 3 роки тому

    Ty so much for clearing the concepts

  • @wenchen1005
    @wenchen1005 7 місяців тому

    Very clear explanation, thank you!

  • @majesticco.4700
    @majesticco.4700 3 роки тому +1

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

  • @yashvi3448
    @yashvi3448 3 роки тому

    Will just say this: was really helpful.

  • @bablu4736
    @bablu4736 2 роки тому +1

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

  • @jameshoffnagle1451
    @jameshoffnagle1451 2 роки тому

    Thanks! Helps bring everything together a lot better :)

  • @emilyparks8635
    @emilyparks8635 4 роки тому +2

    I appreciated the graphic and explanation about the impulse travelling along the sarcolemma and the T-tubules. That's what I've been trying to grasp but none of the other videos I've watched explain it.

  • @user-dh5yd8mv6e
    @user-dh5yd8mv6e Рік тому

    What a beautiful explanation thank you professor ❤🫡

  • @nillyjan6754
    @nillyjan6754 2 місяці тому

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

  • @jyothirmaisunkari6662
    @jyothirmaisunkari6662 3 роки тому +1

    Well explained!!!! Master🙏

  • @pallavisinha2667
    @pallavisinha2667 Рік тому

    Thank You professor Dave. You made it really clear🤩🤩

  • @Ag_paul
    @Ag_paul 3 роки тому

    I had failed to understand this on my own...thanks alot professor, I got it now

  • @jonathanreyes211
    @jonathanreyes211 2 роки тому

    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.

  • @ph-021-muhammadazizarridho5
    @ph-021-muhammadazizarridho5 4 роки тому +1

    Great explanation!

  • @osnatcsillag8596
    @osnatcsillag8596 2 роки тому

    Wow, You're the BEST! Thank you so much! you really helped me!

  • @user-gy5xi7mh9r
    @user-gy5xi7mh9r 14 днів тому

    Thank you for sharing Dr. Professor Dave Explains ❤❤❤❤❤❤❤❤❤❤❤❤

  • @adrianaharisya1257
    @adrianaharisya1257 4 роки тому

    Thank you so much for this video!!

  • @jenishathakuri8263
    @jenishathakuri8263 3 роки тому

    I guess I can feel learning is easy now 😅
    thank you professor

  • @curtpiazza1688
    @curtpiazza1688 2 роки тому

    Excellent presentation!