noun, plural: striated muscles
This characteristic appearance under a microscope is due to a number of sarcomeres or an array of overlapping thick (myosin) and thin (actin) filaments within each muscle cell. Its function is concerned with the movement of skeletal structures. This kind of muscle is exemplified by the voluntary (skeletal) muscles of vertebrates.
Word origin: striated: L striātus furrowed, fluted; muscle: L. musculus "a muscle," lit. "little mouse," dim. of mus "mouse".