Muscle Tissues and Sliding Filament Model

Join the Amoeba Sisters a they explore different muscle tissues and then focus on the sliding filament theory in skeletal muscle! This video also briefly talks about muscle naming, some vocabulary (such as agonists and antagonists) before focusing on the sliding filament model. Video also mentions general roles of tropomyosin and troponin.
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Table of Contents:
00:00 Intro
0:39 Muscle Tissue Types
1:58 Muscle Characteristics
2:33 Skeletal Muscle Naming and Arrangement
3:26 Actin Myosin and Sarcomere
4:32 Sliding Filament Model
6:55 Tropomyosin an Troponin
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Factual References:

Urry, Lisa A, et al. Campbell Biology. 11th ed., New York, Ny, Pearson Education, Inc, 2017.
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Further Reading Recommendations:

What about I and A bands? What actually initiates the power stroke? How does calcium get released and from where? Remember, there is a lot more detail! We recommend this page from Openstax to learn more:

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Spanish Subtitles Translated by Jeremy García
Hindi Subtitles: Translated by Alisha Aggarwal

[estherparrish]

8 min video explaining a 3-hour lecture so thorough Is crazy. ILY

[vimch]

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[peteriverson]

Biology teacher here - something my students and I have been researching recently is how healthy muscles experience “micro tears” that eventually are healed and eventually result in muscle growth. In patients with Duchenne’s muscular dystrophy, we have learned that the sarcolemma rips without the dystrophin protein to keep myofibrils attached together. This causes a cascade of events that leads to cell death. What we haven’t found a good explanatory mechanism for yet is how the oft-discussed “microtears” occur in healthy muscles. What is actually ripping? What does the healing? Any links, journal articles, or explanations are welcome!

Amoeba Sisters: thank you for your wonderful content !

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[KertoBrand]

Unreal video. I was having trouble wrapping my head around the sliding filament theory. The illustrations are hilarious and the explain and description is easy to understand. Thank you so much for your help. All the best and have a wonderful dayQ

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