Therefore, the only way to know if you have gone through menopause is if you have not had your period for one year. (And it's not menopause if your periods stop for some other reason, like being sick.) The average age of menopause is 51, but for some women it happens as early as 40 or as late as 55. After you go through menopause, you are considered in the post-menopausal stage of your life.
The umbilical cord develops from and contains remnants of the yolk sac and allantois (and is therefore derived from the zygote). It forms by the fifth week of fetal development, replacing the yolk sac as the source of nutrients for the fetus.
The umbilical cord connects a baby in the womb to its mother. It runs from an opening in your babyâs stomach to the placenta in the womb. The average cord is about 50cm (20 inches) long. The umbilical cord carries oxygen and nutrients from the placenta into your babyâs bloodstream. The umbilical cord is made up of: one vein that carries blood rich in oxygen and nutrients from you to your baby.