Sliding Filament Theory | 5 Things You Need to Know + Pop Quiz

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5 Things You Need to Know About the Sliding Filament Theory:
1. Calcium Release initiates and regulates the process of muscle contraction within the muscle cell
2. Troponin pulls the tropomyosin out of the way to allow the cross bridge to form
3. Myosin binds to Actin (cross bridge)
4. H band and I band shorten
5. A Band Stays the Same Length
What is the Sliding Filament Theory?
The mechanism that allows a muscle to contract. Myosin binds to actin via cross bridges and the power stroke of the myosin head brings the z discs together shortening the sarcomere.
What does calcium do in the muscle cell?
Calcium is released from the sarcoplasmic reticulum and binds to troponin to move the tropomyosin. This exposes the binding site on actin for the myosin head to form a cross bridge.
What does the sarcoplasmic reticulum do?
For the process of muscle contraction, the sarcoplasmic reticulum stores calcium and releases it into the muscle cell when an action potential propagates down the sarcolemma and into the T tubule.
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[@TheMovementSystem]

If you're studying for the CSCS Exam, make sure you join my study group: facebook.com/groups/2415992685342170

[@GunnedDownAtrocity]

this made way more sense than the section in the CSCS book. this might actually be the best explanation of the sliding filament theory i've ever seen. i'm a 42 year old DPT and i cannot swear i've ever actually learned this before. i've encountered it. and i could get the questions right on a test (more often than not), but i can't say that it ever made sense like it does after this friggen five minute video.

[@BC09a1]

Your videos are great! Thanks a lot, studying for my cscs currently…

[@TheMovementSystem]

Nice. Make sure you join our CSCS Study Group: facebook.com/groups/2415992685342170/?ref=share_group_link

[@gabyxschool]

Fantasic video. I really liked how you broke it down to 5 steps and the pop quiz at the end! Thanks for the upload :)

[@charlottecunliffe9058]

This is amazing I have watched tons of videos and non of them made sense I was completely lost and your video made it sound so simple and split it into steps thank you 👍🏻

[@TheMovementSystem]

Thanks!

[@trainwithmeag]

thank god for this channel, the CSCS exam is no joke

[@marissasanchez492]

Omg, very informative!. I love the quiz at the end. 👍👍

[@pinkrose9877]

Thank you so much I had to rewatch I subscribed since you explained this very well !

[@jian4592]

bro you explained this so well. thank you!

[@TheMovementSystem]

You’re welcome

[@sonikx38]

LOVE THE CONTENT BRO.. VERY HELPFUL

[@TheMovementSystem]

You’re welcome!

[@kellytownsend4526]

I had a General Physiology midterm and your pop quiz question was on it! Thank you!

[@TheMovementSystem]

Cool! Glad you were prepared

[@malakalsheikh9339]

outstanding explanation. Extremely clear and well explained! Thank you

[@TheMovementSystem]

You’re welcome

[@jenniferrudakova5634]

The pop quiz is so helpful for preparing for the cscs! Can you do some more pop quizzes at end of your videos? Thank you!

[@TheMovementSystem]

For sure

[@mg-dv3tu]

I'm revising this topic and this really helped.

[@OneAccordFitness]

Sooo helpful!!!

[@wayvislife]

Omg thank u so much!! This one makes so much sense and easier to follow!

[@InveniosYT]

Thanks!

[@blossoms7815]

What is maximal contraction, when does it occur and what happens during the process?

[@georgewilliamssozi8071]

Thank u

[@lungelongwenya3143]

Can you please summarise muscle recruitment

[@okankamis]

You are the best thanks a lot for your unique lessons. Great job. By the way, do you have any news about the new certification of NSCA? CPSS is the new certification of NSCA could you please share videos about that topic? Thanks in advance.

[@TheMovementSystem]

I just learned of this recently. I'll have to look into it more and make a video.

[@johanneseide5654]

Thank you sir.

[@juanprado4646]

You are a real one

[@sjain7340]

Awsome video. Thanks

[@adomasjasiukenas1425]

Hey! What happens with the rest of the calcium that is not absorbed by sarcoplasmic reticulum?

[@egomode5658]

is the z- disk same as the z-line?

[@TheMovementSystem]

Yes