Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION.

Synonyms: Sperm Penetrations, Oocyte Sperm Interactions, Sperm Penetration, Sperm-Egg Interaction, Sperm Ovum Interactions, Sperm-Zona Pellucida Penetration, Sperm-Oocyte Penetration, Sperm-Egg Interactions, Sperm Egg Interactions, Gamete Interactions, Oocyte-Sperm Interaction, Sperm Ovum Penetration, Sperm-Egg Penetration, Sperm-Oocyte Interactions, Sperm Zona Pellucida Penetration, Oocyte-Sperm Interactions, Sperm-Ovum Penetrations, Sperm Egg Penetration, Ovum-Sperm Interaction, Ovum Sperm Interactions, Sperm-Ovum Penetration, Egg-Sperm Interactions, Sperm-Egg Penetrations, Sperm Oocyte Interactions, Gamete Interaction, Sperm-Oocyte Interaction, Sperm-Zona Pellucida Penetrations, Egg Sperm Interactions, Sperm-Ovum Interactions, Sperm-Oocyte Penetrations, Ovum-Sperm Interactions, Sperm-Ovum Interaction, Egg-Sperm Interaction, Sperm Oocyte Penetration