Muscle Contraction: ATP, Actin, Myosin

In this video we will discuss the mechanism of muscle contraction, which is initiated by tropomyosin moving and exposing the binding sites for myosin on the actin filament. This further allows a cross-bridge to be formed in between the myosin and actin filaments.Calcium binds to troponin and tropomyosin slides from the actin filaments’ binding site allowing the heads of myosin to bind to the actin’s active sites hence forming a cross-bridge. ***Learn how to study for Anatomy & Physiology, enjoy the music free version of this video in the -Study Zone- section and much more, go here: https://www.youtube.com/channel/UCmhPgswuoCd-… ----Credits----- Music: Pond5.com Visuals: canstockphoto.com pond5.com shutterstock.com Contributing writers and video editors: Ricardo Perez Michael Kostikin Victor Onyino Reference & Resources: Squire, J. M. (2016). Muscle contraction: Sliding filament history, sarcomere dynamics, and the two Huxleys. Global cardiology science & practice, 2