title: Ultrastructure of muscle fibers of an extraocular muscle of the pigeon.
mesh_terms: D000818:Animals; D010856:Columbidae / Q000033:anatomy & histology*; D008854:Microscopy, Electron; D009210:Myofibrils; D009801:Oculomotor Muscles / Q000166:cytology*; D012519:Sarcoplasmic Reticulum