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.
Yes, you're right. The umbilical cord is a tube which supplies. all the nutrition from mother to the baby and it is attached to. the baby's lower abdomen from one end and the other end to. the placenta in the womb of the mother. As the baby grows in the womb, the supply of nutritional fluids. increases and it passes through the umbilical cord to the baby.