title: COMPARATIVE STUDIES ON THE STRUCTURE OF CONTRACTILE SYSTEMS.
mesh_terms: D000818:Animals; D000845:Annelida; D002468:Cell Physiological Phenomena; D001517:Coleoptera; D004175:Diptera; D004583:Electrons; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008853:Microscopy; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D008974:Mollusca; D009119:Muscle Contraction; D009124:Muscle Proteins; D009132:Muscles; D009206:Myocardium; D009210:Myofibrils; D010828:Physiology, Comparative; D011247:Pregnancy; D011270:Pregnancy, Animal; D011817:Rabbits; D051381:Rats; D012106:Research; D014599:Uterus
chemical_list: D009124:Muscle Proteins
keywords: ANNELIDA; BEETLES; CELL STRUCTURE; DIPTERA; EXPERIMENTAL LAB STUDY; GUINEA PIGS; MICROSCOPY, ELECTRON; MICROSCOPY, PHASE CONTRAST; MOLLUSCA; MUSCLE CONTRACTION; MUSCLE PROTEINS; MUSCLES; MYOCARDIUM; MYOFIBRILS; PHYSIOLOGY, COMPARATIVE; PREGNANCY; PREGNANCY, ANIMAL; RABBITS; RATS; UTERUS