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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: Jun 27, 2025

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus

Published on: May 16, 2025

Linear atrophoderma of Moulin

Andrea Paradisi^1,2, Irina Ciobotariu^1,2, Laura Quattrini^1,2

¹Dermatologia, Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Roma, Italy.

The Journal of Dermatology

|May 7, 2024

Summary

No abstract available in PubMed .

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