Flagella are whip-like structures found in certain types of cells, primarily bacteria and some single-celled eukaryotes. They are used for locomotion, propelling the cell through its environment.

Muscle cells, on the other hand, are specialized for contraction, which allows for movement of the entire organism or specific body parts. They achieve this through the arrangement of actin and myosin filaments within the cell, which slide past each other when the muscle is stimulated.

Therefore, while flagella are involved in cell movement, they are not a feature of muscle cells.