How sperm reaches to ovary??


Asked by mehakrsv17 | 22nd Mar, 2021, 03:22: PM

Expert Answer:

A man may ejaculate 40 million to 150 million sperm, which start swimming upstream toward the fallopian tubes on their mission to fertilize an egg. Fast-swimming sperm can reach the egg in a half an hour, while others may take days. The sperm can live up to 48-72 hours. Only a few hundred will even come close to the egg because of the many natural barriers that exist in a woman's body. It takes about 24 hours for a sperm cell to fertilize an egg. When the sperm penetrates the egg, the surface of the egg changes so that no other sperm can enter.

Answered by Sheetal Kolte | 23rd Mar, 2021, 11:44: AM