title: A fast block to polyspermy in frogs mediated by changes in the membrane potential.
mesh_terms: D000818:Animals; D001965:Bromides / Q000494:pharmacology; D005260:Female; D005306:Fertilization; D008297:Male; D008564:Membrane Potentials / Q000187:drug effects; D010063:Ovum / Q000502:physiology*; D011894:Rana pipiens / Q000502:physiology; D012965:Sodium Chloride / Q000494:pharmacology; D012974:Sodium Iodide / Q000494:pharmacology; D013084:Sperm-Ovum Interactions
chemical_list: D001965:Bromides; D012965:Sodium Chloride; D012974:Sodium Iodide