Final answer:
Excitation-contraction coupling is the use of electrical currents to produce muscle contractions in innervated muscles, involving the depolarization of muscle cells that initiates the contraction process.
Step-by-step explanation:
The term for the use of electrical currents to produce muscle contractions in innervated muscles is excitation-contraction coupling. This physiological process is crucial for muscles to contract and is based on the generation of electrical signals through membrane potentials. When an electrical current is applied, it stimulates the muscle cells to depolarize, which in turn triggers the muscle contraction process. In our bodies, this depolarization usually starts from the nervous system sending action potentials to muscle fibers. With external sources, as depicted where victims experience involuntary contractions due to electric currents, the artificial introduction of current can achieve a similar effect, causing the muscles to contract without neural initiation.