Sliding Filament Model and Excitation Contraction Coupling

💪🏼 FREE muscular system review unit for teachers and students on ➕PositiveSTEM. All questions are aligned to my muscular system videos. Go to www.positivestem.org and create a free account, or read my blog post for more info: justinmsiebert.com/2024/04/18...
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0:00 Intro
0:33 Excitation-Contraction Coupling
4:34 Structure of Actin and Myosin
6:19 Sliding Filament Model Stages
10:52 Recap
12:01 Test Yourself!
12:23 Straight-up adorableness
In this video, I explain how an action potential from the brain results in contraction of a muscle cells. This includes excitation-contraction coupling as well as the steps of the sliding filament model.
Action Potentials video: • Sliding Filament Model...
Synaptic Transmission video: • Synapses | Broken down...
🧠 For all my science videos and resources: www.justinmsiebert.com​/science
💻 My youtube channel: / siebertscience​

[@MekuAyele-fn6qb]

I genuinely appreciate how clear and engaging your videos are! A huge thanks for making complex topics so accessible and fun. Your help has been invaluable!

[@roosta141]

This is the easily clearest and best video I have come across on this subject.
Thank you so much!

[@freedomisinyournextbreatht8870]

Preparing for an exam and I watched about 5 videos on this theory before finding yours! Absolutely love the clear precise way you explain things, draw the pictures as you go, and then recap at the end. So much gratitude to you and you have a new follower. Adding the clips of your family makes it all the better. Thanks again!

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Had to complete an assignment for my human physiology class based of this video lol great work!

[@SiebertScience]

Haha, thanks! Hope the assignment went well!

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I love your delivery of the material. You are clear, concise, and easy to listen to and understand! Thank you!!

[@sfcaliforniachica]

Your videos and illustrations are absolutely incredible. You explain things where it’s easy to understand, and your illustrations are clear, colorful and beautiful.You make Anatomy enjoyable! I am a fan!!!!

[@melindapetersen5582]

This is such a great explanation. Thank you!

[@OneAccordFitness]

This helped so much as we are to know 22-23 steps to write from excitation to cross bridge and finish with reset. Very clear, thank you.

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Thank you very much Professor for your easy and clear explanation. I love all your videos!!

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Thanks for sharing and your daughter is so smart 😍🥰

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Wow!! You made this chapter super easy!! Your art skill made it all!! Actually your explaning skill did most of them haha.
What an awesome lecture!! I am so lucky to watch your lecture. Thanks again!!

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Incredibly helpful!

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[@SiebertScience]

Thank you! Glad they're helpful!

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Thank you! This was great. I’ve watched several videos & most of them went too fast. This was at a great pace & thorough. It really helped!!! Thank you for your clearly explaining complex topic.

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Gonna recommend ur channel to my friends. Everything has been taught so clearly.

[@jennytaylor3962]

You've really developed my understanding. Thank you.

[@kimberlewis2371]

Thank you so much. These are very helpful for online students. Seeing it helps better than reading.

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Thank you for the effort ❤

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Awesome!! 😊.. I'm so happy to find all these videos..God bless you and your family..

[@etkinakar9611]

Great explanation! Thank you so much

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[@mohanadalshaer8692]

really easy and simple to understand , thank you so much

[@joslynepperson2547]

You are AWESOME!!! And I love your drawings!!!! Thank you!

[@SiebertScience]

Oh, thank you! Glad you like the drawings...they take a while :)

[@lindseywhite5165]

Thank you so much for this!!! I’m studying for the MCAT and this really helped me understand muscle contraction!!

[@SiebertScience]

You’re welcome! Good luck on the MCAT!

[@kimkimmy1065]

Thank you,! your videos are the best! Please keep them coming.

[@laurenpursel6913]

this really helped me for my anatomy class, thank you!!!

[@yayahwinarti95]

Thank you so much for your great explanation, it's clearly answer my wondering about muscle contraction 🙏

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Thank you for sharing this video, it’s very informative and precise.👏🏽

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so helpful! thank you!

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Thank you very helpful with these high visual content .

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Super helpful, thank you!!

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Absolute king, thank you

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Thank you doctor

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You are an awesome teacher, love that little babi!

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THANK YOU!!!

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Thank you so much

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THANK YOU

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thank you for this!!

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thank you for sharing the video

[@user-sb1ni2sn8n]

very helpful thank u!

[@alondragittelson]

Thank you!! This was the best video to understand this topic. I was having trouble visualizing this concept and now it all makes sense!!!

[@SiebertScience]

Awesome! Glad it was helpful. Also, my daughter's name is Alondra!

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@@SiebertScience no way! That’s actually really cool. I don’t meet a lot of people named Alondra. It’s a beautiful name :)

[@user-le8px6dj1t]

I'm having my exams tomorrow on this topic and this video has helped me understand. Thank you

[@jenniferlevan9298]

Thanks for sharing. It's a great video.

[@SiebertScience]

You're welcome! Thanks for the comment.

[@ronilda2231]

God bless you.

[@annkathambi1520]

Thank you very much this really helped me in my exam nice work sir

[@ArthursFit]

Thanks!

[@SiebertScience]

And thank you x2! I appreciate it!

[@millicentkemboi6317]

I think I'm learning more from you than my lecturer

[@ugotnojams3955]

thank u seriously, there is an anatomy exam coming in a few days and this video helped me a lot to understand more about what happens in the muscles

[@SiebertScience]

Hope the exam went well!

[@daniellozanoramirez945]

Thanks

[@ms.understood143]

oh Thank God! I found this!

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[@fazelahmad7320]

You were the best like all the timme but a little bet in a hurry. The speed of teaching was somewhat faster. But it was 100 times better than what other teachers explain.

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Go do a nice deed for someone else, and I'll consider the debt paid. ;)

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Siebert Science

[@rkb8100]

I had Guillain-Barré and was left with weakness in my quads. How many neuro transmitters are there that stimulate a particular muscle? hundreds,thousands,millions? And perhaps mine didn’t all return?

[@SiebertScience]

Each muscle will have somewhere in the hundreds of thousands of muscles fibers, and each fiber has one motor neuron terminal connected to it.
The neurotransmitters are the tiny chemicals released from the axon terminal to the muscle fibers...not sure how many of those there are, but it's a lot!

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life saber

[@deltalima6703]

Not exactly. Close though.

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Too fast

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Speak way too fast!

[@SiebertScience]

Sorry! I think you can adjust the playback speed of UA-cam videos. Maybe slowing the video down could help?

[@deltalima6703]

Guy is wrong. You do not speak too fast. Volume is good too.