Look at the demonstration slides of smooth and skeletal , or striated muscle.
Smooth muscle is usually from hypomere mesoderm and forms the visceral or involuntary muscles.
They hav e no striations, central nuclei and spindle-shaped fibres that taper and dovetail together. Skeletal muscles are usually from myotome except the branchiomeric muscles in the head which are from hypomere mesoderm. They a re voluntary muscles and the muscle is striated, the many nuclei are peripheral and the fibres are long, cylindrical and unbranched. Cardiac muscles are striated but involutary. They have branching strands and come from mesenchyme.