Rights: The University of Waikato Published 21 June 2007 Size: 72 KB

Make a quick and easy model of sliding filament model by putting whiteboard markers or other fat pens (the thick filaments) between your fingers (the thin filaments). Now move your thin filaments along the thick filaments.

The first photograph on the right shows a contracted muscle where the thin filaments have moved along the thick filaments. The second photograph shows a relaxed muscle.