Sperm TailSperm HeadTailSpermatozoaSperm CapacitationSperm MotilitySpermatidsSperm CountInjectionsTestisSperm MaturationAcrosomeInfertility, MaleSeminal Plasma ProteinsEpididymisSpermatogenesisSperm MidpieceSperm-Ovum Interactionst-Complex Genome RegionFertilizationFertilityMicroscopy, ElectronSperm Injections, IntracytoplasmicSperm TransportSea UrchinsMolecular Sequence DataDyneinsAcrosome ReactionAmino Acid SequenceInjections, IntravenousInjections, IntramuscularFlagellaSemenSperm BanksMicrotubulesSemen PreservationFluorescent Antibody TechniqueProteinsInjections, SubcutaneousInjections, IntralesionalInjections, Intra-ArticularSemen AnalysisCiliaHeat-Shock ProteinsZona PellucidaBase SequenceEjaculationImmunohistochemistryDNA, ComplementaryInjections, Intraperitoneal