title: Biochemical control of contraction in visceral smooth muscle.
mesh_terms: D000818:Animals; D049872:Bivalvia; D002118:Calcium / Q000502:physiology; D000070559:Gizzard, Non-avian; D066298:In Vitro Techniques; D008274:Magnesium / Q000502:physiology; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000502:physiology*; D009218:Myosins / Q000502:physiology; D014335:Tropomyosin / Q000502:physiology
chemical_list: D014335:Tropomyosin; D009218:Myosins; D008274:Magnesium; D002118:Calcium