Biography and career. Satterfield was born Louis Edward in Shaw, Mississippi, a city in Bolivar and Sunflower counties, Mississippi, in the Mississippi Delta region, on April 3, 1937.
Excitation-contraction coupling (ECC) is the process whereby an action potential triggers a myocyte to contract.When a myocyte is depolarized by an action potential, calcium ions enter the cell during phase 2 of the action potential through L-type calcium channels located on the sarcolemma.hen calcium binds to the TN-C, this induces a conformational change in the regulatory complex such that troponin-I (TN-I) exposes a site on the actin molecule that is able to bind to the myosin ATPase located on the myosin head.
excitation. an act of irritation or stimulation; a condition of being excited or of responding to a stimulus; the addition of energy, as the excitation of a molecule by absorption of photons. anomalous atrioventricular excitation Wolff-Parkinson-White syndrome.