受孕是指精子与卵子的结合成为受精卵。受精的过程是一个复杂的生殖生理过程,然而,受精的基本物质是精子和卵子。精子由男性尿道排出,一次射精有数亿个。经由阴道、宫颈、子宫到达输卵管约1小时。最后只剩下约200个精子到达壶腹部。其余的则由阴道排出或被子宫内的白细胞吞噬及 Conception refers to the combination of sperm and egg into a fertilized egg. Fertilization is a complex process of reproductive physiology, however, the basic material of fertilization is sperm and egg. Sperm from the male urethra, there are hundreds of millions of ejaculation. Through the vagina, cervix, uterus reach the fallopian tube for about 1 hour. Finally, only about 200 sperm reach the ampulla. The rest is discharged from the vagina or intrauterine phagocytosis and leukocytes