We’re kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the sliding filament model. Your skeletal muscles are constructed like a rope made of bundles of protein fibers, and the smallest strands are your actin and myosin myofilaments. It’s their use of calcium and ATP that causes the binding and unbinding that makes sarcomeres contract and relax.
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Chapters:
Introduction: Muscle Love 00:00
Smooth, Cardiac, and Skeletal Muscle Tissues 1:18
Structure of Skeletal Muscles 2:40
Protein Rules 3:25
Sarcomeres Are Made of Myofilaments: Actin & Myosin 3:54
Sliding Filament Model of Muscle Contraction 4:38
Review 9:17
Credits 9:57
***
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Watching your videos is like learning is fun….LOVE The way u present Hank!!!!….thanks loads…keep up this great teaching…..
plz don't talk too much fast it is hard to understand 95% all around the world English is a second language.
Alright ya kinda lost me on this one, Hank, sorry.
Love this!! Thank you
O MY GOSH!
"googles "Chris Evans when he first walks out of that machine in Captain America"*
Me: Yes, I see.
The “chemistry” between myosin & actin makes my heart beat (:
This video rocks
followed you till 6 minute mark then i wasnt quite lost but if someone asked me to explain everything after I definitely would not be able to haha what a load of info ! Thanks !
why does he kinda look like idubbz
God biology is so unbelievably incredible
I already finished all my work about the muscular system, yet I still watched the last 5 minutes. Fun vid!
Hank: "As you sit there and eat"
Me: eating nachos; feeling like I'm being watched and judged 😲
Hank: "….or Texting, Reading, Notes, etc"
Me: Still offended for being called out.
9:08 caught.
Pssst… we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
I need to explain the types of muscles and explain each one
Is anyone here because they are just interested lol
I love how this episode references Captain America: The First Avenger and Titanic, which are two of my favorite films. Yes, muscles do make me think of Chris Evans as Steve Rogers.
Bro..speak slow …plzz
talked so fast…
I just don’t understand why atp becomes adp and phosphate
I already owe this guy my career
The most confusing part is that it sounds like we should be consuming a thousand times more calcium than we do
idk why im studying this in depth im 12 but i absolutely love it.
Thanks sir
Who is here just because your science teacher is making you watch this during quarantine
hrmm, sounds like dating….
"kind of like you'll play this video over and over again" way to call me out
Y
God bless CrashCourse Anatomy & Physiology! :')
Thank you very much ❤
Talk slow because I am from India
He talks way too fast