Uterus
no
Mucus is a substance produced by the lining of the nasal cavity. This mucus helps moisten and filter incoming air.
mediastinum
When an egg is not fertilized by sperm, this causes the breakdown of the uterus lining. It is known as menstruation.
if it is fertilized by sperm it becomes a zygote that embeds itself into the lining on uterus The placenta, which is especially prepared for this event once a month if it is not fertilized it breaks down after a couple of days which signals for the uterus to dispose of the lining in what is seen as menstrual bleeding.
to prepare the uterus to receive any fertilized eggs
The blood lining of the uterus gradually thickens during a woman's menstrual cycle in order to be prepared to receive the fertilized egg. This lining will shed during the menstrual period if no fertilized egg has implanted.
Progesterone levels rise after ovulation to protect the fertilized egg and to prevent the uterine lining from shedding allowing the fertilized ovum to implant in the lining. Progesterone protects the zygote until hCG kicks in after implantation.
The lining of the uterus is what denigrates when your egg isn't fertilized and you get your period.
Progestrone causes the uterine lining to thicken in preparation of a fertilized egg. If no egg is fertilized, the thick lining is shed as a menstrual cycle.
the lining of the uterus thickens,
no
Mucus is a substance produced by the lining of the nasal cavity. This mucus helps moisten and filter incoming air.
Mucus is a substance produced by the lining of the nasal cavity. This mucus helps moisten and filter incoming air.
The retroperitoneal space contains organs in the abdominal cavity that are behind the peritoneal lining.
implantation
mediastinum