title: The acrosome reaction of Strongylocentrotus purpuratus sperm. Ion requirements and movements.
mesh_terms: D000177:Acrosome / Q000502:physiology* / Q000648:ultrastructure; D000818:Animals; D002118:Calcium / Q000378:metabolism*; D007476:Ionophores / Q000494:pharmacology; D008297:Male; D012617:Sea Urchins; D012964:Sodium / Q000378:metabolism*; D013094:Spermatozoa / Q000187:drug effects / Q000378:metabolism* / Q000502:physiology* / Q000648:ultrastructure; D013757:Tetraethylammonium Compounds / Q000494:pharmacology
chemical_list: D007476:Ionophores; D013757:Tetraethylammonium Compounds; D012964:Sodium; D002118:Calcium