Sliding Filament Theory Coloring - Color the motor neuron yellow. A muscle contraction starts in the brain, where signals are sent along the motor neuron (a). A sarcomere in relaxed (above) and contracted (below) positions. Web the most widely accepted theory explaining how muscle fibers contract is called the sliding filament theory. A gastrocnemius muscle (calf) with striped pattern of sarcomeres the view of a mouse gastrocnemius (calf) muscle under.
A gastrocnemius muscle (calf) with striped pattern of sarcomeres the view of a mouse gastrocnemius (calf) muscle under. Color the motor neuron yellow. A muscle contraction starts in the brain, where signals are sent along the motor neuron (a). A sarcomere in relaxed (above) and contracted (below) positions. Web the most widely accepted theory explaining how muscle fibers contract is called the sliding filament theory.