title: Regulation of particle length of F-actin in contracted actomyosin fibers.
mesh_terms: D000199:Actins / Q000032:analysis*; D000205:Actomyosin / Q000032:analysis*; D000255:Adenosine Triphosphate / Q000494:pharmacology; D000818:Animals; D008274:Magnesium / Q000494:pharmacology; D008854:Microscopy, Electron; D009119:Muscle Contraction / Q000187:drug effects; D009210:Myofibrils / Q000032:analysis* / Q000187:drug effects; D011817:Rabbits
chemical_list: D000199:Actins; D000255:Adenosine Triphosphate; D000205:Actomyosin; D008274:Magnesium