title: Comparative aspects of muscle.
mesh_terms: D000818:Animals; D000845:Annelida; D003063:Cnidaria; D003445:Crustacea; D004447:Echinodermata; D006376:Helminths; D008854:Microscopy, Electron; D008974:Mollusca; D009119:Muscle Contraction; D009132:Muscles / Q000033:anatomy & histology / Q000166:cytology / Q000502:physiology*; D010828:Physiology, Comparative