develops from develops from myoblast contractile cell muscle cell https://www.swissbiopics.org/api/image/Muscle_cells.svg A mature contractile cell, commonly known as a myocyte. This cell has as part of its cytoplasm myofibrils organized in various patterns. muscle fiber myocyte FMA:67328 WBbt:0003675 BTO:0000888 FBbt:00005074 BTO:0000902 CALOHA:TS-2032 eukaryotic cell electrically responsive cell mesoderm-derived structure