title: REGULATION BY CALCIUM OF THE CONTRACTION AND RELAXATION OF MUSCLE FIBERS.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium; D002136:Calcium, Dietary; D008853:Microscopy; D009124:Muscle Proteins; D009132:Muscles; D010827:Physiology; D012106:Research
chemical_list: D002136:Calcium, Dietary; D009124:Muscle Proteins; D002118:Calcium
keywords: CALCIUM; EXPERIMENTAL LAB STUDY; FROGS; MICROSCOPY; MUSCLE RELAXING FACTOR; MUSCLES; PHYSIOLOGY