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

Follow me on Instagram:   / themovementsystem   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. 👇🏽Click here to Join the Strength and Conditioning Study Group on Facebook!   / 2415992685342170   Studying for the CSCS Exam? CSCS Prep Course: https://www.themovementsystem.com/str... This is the CSCS Practice Test that I recommend: https://www.themovementsystem.com/off... Make sure you check out some of the other CSCS Prep Videos I have done: CSCS Nutrition:    • CSCS Nutrition Calculations: Calories...   CSCS Work to Rest Ratios:    • NSCA CSCS Work to Rest Ratio Explaine...   Muscle Levers:    • Muscle Levers 1st Class, 2nd Class, 3...   Olympic Lifting Technique:    • Olympic Lifting Technique: Snatch, Cl...   Picture credit: https://training.seer.cancer.gov/anat... https://www.cvphysiology.com/Cardiac%... https://commons.wikimedia.org/wiki/Fi... Comment below if you have any questions! 🧠 Learn more at www.themovementsystem.com This is the CSCS Practice Test that I recommend: https://www.themovementsystem.com/off... Disclaimer: This video does not have any affiliation with, or any recognition, sponsorship, or endorsement by, the NSCA. CSCS® and Certified Strength and Conditioning Specialist® are registered trademarks of the National Strength and Conditioning Association. ✅ Let’s Connect: 📱 Instagram: @themovementsystem