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What and the lining of the uterus break down?
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.
Does the lining of your uterus always come out during your period?
Yes, it does, unless it did not build up in the first place. As soon as your period ends, the womb lining begins to build up and thicken so that if the egg is fertilised, there will be a thick, safe, spongy environment for it to implant in. If the egg has not been fertilised, it will break down during your period because it is not needed. However, sometimes, the right hormones are not being produced or not enough of them are produced and the womb lining does not build up, therefore it does not break down either
Where does the blood come from on a period?
During a menstrual period, the blood comes from the shedding of the uterine lining, known as the endometrium. This shedding is triggered by a drop in estrogen and progesterone levels, which causes the blood vessels in the endometrium to constrict and then detach from the uterine wall. The blood is then expelled through the cervix and out of the vagina during menstruation.
When does uterine lining break down?
The uterine lining breaks down during menstruation, which is the shedding of the endometrium that occurs approximately once a month in women of reproductive age. This process is triggered by a drop in hormones, specifically estrogen and progesterone, leading to the detachment of the lining and its subsequent expulsion from the body through the vagina.
What is the process of the periodic shedding of the endometrial lining?
The process of shedding the endometrial lining is known as menstruation. It occurs when there is a drop in hormone levels, causing the blood vessels in the uterus to constrict and the endometrial tissue to break down and shed. This shedding is then expelled from the body through the vagina during menstruation.
Why do womens have period?
Each month, from the age of about 12, a woman releases one egg each month. If this egg is fertilised by sperm during sex, a baby is made. If it isn't fertilised, it starts to break down and the body needs to get rid of it. Also, during the month, the lining of the woman's uterus/womb starts to build up and thicken so that if the egg is fertilised it will be able to implant into the lining and grow. If the egg is not fertilised, the body also needs to get rid of this built-up lining. So, once the egg has been released, and not fertilised it will start to break down and the remains leave the uterus through the cervix and out of the vagina. As the lining of the uterus starts to break down and detach, blood vessels are ruptured and this is where the blood comes from.
What causes the amniotic sac to break?
Uterus starts to contract causing the amniotic fluid to break out
Why does the uterus lining break down each month if the woman does not get pregnant?
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.
When does the uterine lining begin to break down?
During Menstruation. The uterine lining sheds to prepare the uterus for pregnancy. It's due to the drop in estrogen and progesterone.
How does progestrone start your period?
Progesterone doesn't start your period, it's actually the drop in progesterone that starts your period. Progesterone caused the uterus lining to build up, if pregnancy doesn't occur the progesterone level drops causing the uterine lining to break down - menstruation.
What and the lining of the uterus break down?
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.
Does the lining of your uterus always come out during your period?
Yes, it does, unless it did not build up in the first place. As soon as your period ends, the womb lining begins to build up and thicken so that if the egg is fertilised, there will be a thick, safe, spongy environment for it to implant in. If the egg has not been fertilised, it will break down during your period because it is not needed. However, sometimes, the right hormones are not being produced or not enough of them are produced and the womb lining does not build up, therefore it does not break down either
What does oestrogen do in the menstrual cycle?
Several hormones are involved in the female menstrual cycle, the ovaries produces oestrogen which causes changes at puberty and helps control the menstrual cycle, and stimulates production of LH.
What is break through bleeding and how long can this last for?
Break through bleeding (also know as implantation bleeding) is when the fertilised egg implants in the built-up lining of the uterus. This often causes some of the blood vessels in the lining to burst, which causes the bleeding
Why does the uterus lining get thinner during the period?
The uterus lining, or endometrium, thickens in preparation for a potential pregnancy each month. If fertilization does not occur, hormonal changes lead to a decrease in estrogen and progesterone levels, which causes the endometrium to break down and shed. This shedding results in menstruation, during which the lining becomes thinner as it is expelled from the body. In the absence of pregnancy, the thinning of the lining is a natural part of the menstrual cycle.
What is the relationship between oestrogen concentration in the blood and the thickness of the lining of the womb?
I think that if the relationship between oestrogen and the blood lining is that if it is low, there is a stop in the progression of blood lining and lining begins to break down, as oestrogen causes progesterone hormone that creates the thick mucus lining around the uterus and maintain it. When there is high concentration of oestrogen in the blood, it can help in maintaining the lining and creating the mucus in the uterus. Sometimes if there is a real high concentration in the blood, like when you take a contraceptive, it can cause blood clots to happen.
Where does the blood come from on a period?
During a menstrual period, the blood comes from the shedding of the uterine lining, known as the endometrium. This shedding is triggered by a drop in estrogen and progesterone levels, which causes the blood vessels in the endometrium to constrict and then detach from the uterine wall. The blood is then expelled through the cervix and out of the vagina during menstruation.
