Excitation Contraction Coupling

EXCITATION CONTRACTION COUPLING

  • The arrival of an Action Potential at Sarcoplasmic Reticulum causes release of Ca2+ down the concentration gradient to sarcoplasmic reticulum.Released Ca2+ causes conformational changes to effect contraction. As action potential passes,Ca2are pumped again to sarcoplasmic reticulum and relaxation happens. This cycle is known as Excitation Contraction Coupling.
Last modified: Saturday, 3 December 2011, 5:05 AM