Sperm TailSperm MidpieceFlagellaSpermatozoaSperm MotilitySea UrchinsSperm HeadDyneinsAxonemeSperm CapacitationSperm CountAcrosomeSpermatidsVanadiumInfertility, MaleSeminal Plasma ProteinsSperm MaturationSpermatogenesisStarfishTestisMicrotubulesCiliaEpididymisAsthenozoospermiaVanadatesMotion Pictures as TopicMicroscopy, ElectronSperm-Ovum InteractionsKartagener SyndromeFertilizationAdenosine TriphosphatasesAdenosine TriphosphateFlagellinSea CucumbersMovementMolecular Motor ProteinsSemenViscosityFreeze EtchingMolecular Sequence DataEjaculationAcrosome ReactionChlamydomonasZona PellucidaSperm TransportTubulinMicroscopy, ImmunoelectronTrypsinFertilityCattleSperm Injections, IntracytoplasmicElectrophoresis, Polyacrylamide GelMolecular WeightAmino Acid SequenceSperm BanksSemen PreservationModels, BiologicalChlamydomonas reinhardtiiSemen AnalysisCell MembraneCalciumMicroscopy, FluorescenceBacterial ProteinsMitochondriaFluorescent Antibody TechniqueSperm WhaleCryopreservationTrypanosoma brucei bruceiOligospermiaKineticsProtozoan ProteinsOvumMutation