title: A comparative study of the organization of the sarcotubular system in ascidian muscle.
mesh_terms: D000818:Animals; D007814:Larva / Q000648:ultrastructure; D008854:Microscopy, Electron; D009132:Muscles / Q000648:ultrastructure*; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure; D013045:Species Specificity; D014561:Urochordata / Q000648:ultrastructure*