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-contraction coupling refers to a somewhat abstract description of the processes involved in muscle contraction. The musculoskeletal system is intricately intertwined with the nervous system, allowing muscle contraction and movement to occur through communication with sensory and motor neural pathways.ction potential occurs when there is a sudden and sharp change in the potential difference across the membrane of a nerve cell that is propagated along the length of the cell. Touching a hot surface is an example of excitation-contraction coupling. View slideshow of images above. Watch the Did-You-Know slideshow.