Musculoskeletal System Sugito Wonodirekso, MS, Dr Department of
Histogenesis. Mesenchymal cells of mesodermal origin fuse to each other to make. Myoblasts which then fuse to make. Myotubes which later . Elongate by incorporating additional myoblasts. Eventually accumulated myofilaments which are organized into myofibrils and displaced nuclei and other...