Musculoskeletal System | Sarcomere Structure: Actin & Myosin
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- Опубликовано: 14 июн 2017
- Official Ninja Nerd Website: ninjanerd.org
Ninja Nerds!
In this lecture Professor Zach Murphy will be teaching you about the sarcomere, which is the structural and functional unit of skeletal muscle. We go into great detail on the sarcomere and how these microscopic changes occur at the cellular level to cause a contraction. We hope you enjoy this lecture and be sure to support us below!
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Wow, I watched several other sarcomere videos and re-read the textbook a thousand times, and this finally made me understand it. Thank you so much!
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As usual fantastic work, thank you! Tiny remark: IMHO isotropic does not mean lighter it just coincides with being lighter, but actually means (in this context) that it has the same optical properties in all directions which is true for actin in contrast to myosin. This can easily be verified with a polarizing microscope where actin is much less birefrigent than myosin.
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Great job on this video and your part I video! This is the first source I've run across that connects all the dots. I finally understand how sarcomeres that seem to be working against each other, work together to make muscular force possible.
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