The states of myosin heads in heart muscle during systolic and diastolic phases.
D000818:Animals; D003971:Diastole; D004285:Dogs; D006321:Heart / Q000502:physiology*; D066298:In Vitro Techniques; D009200:Myocardial Contraction; D009206:Myocardium / Q000378:metabolism; D009218:Myosins / Q000378:metabolism*; D010210:Papillary Muscles / Q000502:physiology; D013599:Systole; D014961:X-Ray Diffraction
D009218:Myosins