At the beginning of the menstrual period.
The lining of the uterus breaks down and is shed during menstruation if fertilization does not occur.
The uterine lining builds-up following ovulation in preparation for possible pregnancy, to allow the zygote to implant and nourish the growing 'baby'. If pregnancy doesn't occur the drop in progesterone triggers the uterus lining to break down, this is called menstruation.
Hormone levels drop and the uterus lining starts to break down during a woman's menstrual cycle. This typically occurs after ovulation when there is no pregnancy, leading to the shedding of the uterine lining in the form of a menstrual period.
After fertilization, the uterus lining provides nourishment and protection for the fertilized ovum. The ovum implants in the uterus lining, where it receives nutrients and support for development into an embryo.
After fertilization, the egg implants in the lining of the uterus. It can implant on any side of the uterus where the endometrial lining is thick enough to support pregnancy.
The lining of the uterus breaks down and is shed during menstruation if fertilization does not occur.
you start to bleed as the uterus lining breaks down.
When the lining of the uterus breaks down and exits the body, it is called menstruation, or a woman may also refer to it as her period.
When the yellow body (corpus luteum) degenerates and withers away, the lining of the uterus breaks down and menstruation occurs.
because the egg is not needed so the lining of the stomach is not needed to protect the egg. The lining breaks down and this is a period.
It breaks down/ Is removed through the vagina.
When a woman ovulates, the lining of the uterus thickens to prepare for the zygote and when it's not fertilized the lining of the uterus breaks down and the egg and lining leaves the uterus by bleeding.
Menstruation is the process in which the uterus lining breaks down and leaves the body - thus menstrual flow consists of uterus lining and blood from the uterus lining breaking down, it can also contain cervical mucus picked-up while the menstrual flow passes through the vaginal opening, and discharge from within the vagina.
A period is when a woman's uterus lining breaks down and exits her body through her vagina. This happens on a monthly basis.
The uterine lining builds-up following ovulation in preparation for possible pregnancy, to allow the zygote to implant and nourish the growing 'baby'. If pregnancy doesn't occur the drop in progesterone triggers the uterus lining to break down, this is called menstruation.
After a woman enters puberty, her cycle begins. At the end of the cycle (which is plus of minus 28 days) the bloody inner lining of the uterus breaks down when the egg was not fertilized. The liquification of that bloody lining is what is expelled at the end of the cycle (period). The uterus contracts to help the bloody lining expel. The uterine contractions are what cause the feeling of cramps.
hormone that maintains the lining of the uterus?