title: Equatorial X-ray reflections and cross arm movement in skeletal muscle.
mesh_terms: D000199:Actins / Q000378:metabolism; D000818:Animals; D001001:Anura; D008954:Models, Biological; D009119:Muscle Contraction; D009132:Muscles / Q000648:ultrastructure*; D009218:Myosins / Q000378:metabolism; D011894:Rana pipiens; D014961:X-Ray Diffraction
chemical_list: D000199:Actins; D009218:Myosins