Fertilization was not understood in antiquity. Hippocrates believed that the embryo was the product of male semen and a female factor. But Aristotle held that only male semen gave … 展开

Cortical reaction
After the sperm enters the cytoplasm of the oocyte, the tail and the outer coating of the sperm disintegrate. … 展开

Various disorders can arise from defects in the fertilization process. Whether that results in the process of contact between the sperm and egg, or the state of health of the biological parent … 展开

• Fertilization (Conception) 展开

Ampulla
Fertilization occurs in the ampulla of the fallopian tube, the section that curves around the ovary. 展开

Fertilization is the event most commonly used to mark the beginning point of life, in descriptions of prenatal development of the embryo or fetus. The resultant age is known as fertilization age, fertilizational age, conceptional age, embryonic age, fetal age or (intrauterine) … 展开

• Development of the human body
• Spontaneous conception, the unassisted conception of a subsequent child after prior use of assisted reproductive technology 展开