Boundless Anatomy and Physiology

Cardiovascular System: The Heart

Cardiac Muscle Tissue

Concept Version 13

Created by Boundless

Mechanism and Contraction Events of Cardiac Muscle Fibers

Animation of Myosin and Actin

Animation of Myosin and Actin

This animation shows myosin filaments (red) sliding along the actin filaments (pink) to contract a muscle cell.

Source

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"Actin Myosin."

http://commons.wikimedia.org/wiki/File:Actin_Myosin.gif Wikimedia Public domain.