31 مناظر · 03/13/25
3,039 مناظر · 01/17/24
The difficult journey of the sperm
0
0
14,328 مناظر·
01/17/24
The journey of egg and sperm. There are a lot of casualties (deaths) among the sperm as they swim toward the egg. First, many get lost in the maze of a woman's uterus where they also have to contend with acidic vaginal secretions.
مزید دکھائیں
0 تبصرے
sort ترتیب دیں
31 مناظر · 03/13/25
3,039 مناظر · 01/17/24
