Skeletal Muscle Levels of Organization + Filament Basics

💪🏼 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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This video covers the levels of organization of skeletal muscle, from organ (muscle) to tissue (fascicle) to cell (fiber) to organelle (myofibril) to molecule (myofilaments). At the end, I explain the basics of how actin and myosin work together to contract a muscle.
0:00 Intro
0:15 Muscle (organ level)
0:54 Fascicle (tissue level)
1:16 Fiber (cell level)
4:01 Myofibril (organelle level)
4:56 Myofilaments (molecular level)
6:13 Sarcomere and how filaments contract a muscle
8:08 Recap
8:53 Quiz Yourself!
9:42 Mr. Siebert tries to be funny and fails
Here's my Sliding Filament Model video: • Sliding Filament Model...
www.justinmsiebert.com
/ siebertscience
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Image used:
Found at: courses.lumenlearning.com/cun...
License info: Unit 6: Muscular System (Module 18). Authored by: Open Learning Initiative. Provided by: Carnegie Mellon University. Located at: oli.cmu.edu/jcourse/workbook/.... Project: Anatomy & Physiology. License: CC BY-NC-SA: Attribution-NonCommercial-ShareAlike

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مبدع

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I would like to thank you so much for the effort and interesting way of explanation. Also, would like to ask if you can help with how to gain muscles severe weakness after surgery and no rehabilitation was done resulting in challenging movement. My muscles are getting weaker and I don't know what to do about it. So, I'd appreciate it so much if you have any advice regarding which group of muscles to work on, diet that would help, exercise, etc .. I just need to know where to start.
Thank you in advance

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What about mitochondria?

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