Fertilization/(受精) Definition: the process by which the Ampulla site of fertilization (sperm cell penetrates oocyte) male and female gametes(sperm and Uterine tube ovum) unite to give rise to zygote ste: in the ampullary region(壶腹部) of the oviduct Oocyte Ovary Sperm cells deposited in vaginaFertilization（受精） ▪ Definition: the process by which the male and female gametes (sperm and ovum) unite to give rise to zygote ▪site: in the ampullary region（壶腹部） of the oviduct