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Cross-bridge Cycle

Cross-bridge Cycle

As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.

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Related Experiment Video

Updated: Sep 17, 2025

$Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity$

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Correction: Geographic atrophy in Asia

Chui Ming Gemmy Cheung¹, Youxin Chen², Frank G Holz³

¹Singapore National Eye Center, Singapore Eye Research Institute, Singapore, Singapore. gemmy.cheung.c.m@snec.com.sg.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie

|July 4, 2025

Summary

No abstract available in PubMed .

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