Between 6 to 14 days before fertilization, estrogen levels rise as the ovarian follicles develop during the follicular phase of the menstrual cycle. This increase in estrogen stimulates the thickening of the endometrium, the uterine lining, promoting the growth of blood vessels and glands in preparation for a potential implantation of a fertilized egg. The endometrium becomes more vascular and nutrient-rich, creating an optimal environment for embryo development. This process is crucial for successful implantation if fertilization occurs.
Normal oestrogen, or estrogen, levels in women vary for many reasons. Typically, the range can fall anywhere between 50 to 400 picograms per milliliter.
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.
Oestrogen plays a crucial role in the regulation of the menstrual cycle and ovulation. During the follicular phase, rising levels of oestrogen produced by developing follicles stimulate the thickening of the uterine lining and signal the pituitary gland to release luteinizing hormone (LH). This surge in LH triggers ovulation, leading to the release of an egg from the ovary. Thus, oestrogen is essential for both preparing the body for ovulation and facilitating the ovulation process itself.
If two (or more) eggs are fertilised and develop together you will get fraternal twins. Identical twins are the result of a single fertilised egg dividing into two embryos.
It could be possible if it was two separate ova that were fertilised. Normally there is up to 30 minutes between kids being born.
after ovulation ,if the ovum is not fertilised , it ruptures and flows out in the form of blood .this process is called menstruation takes place between the 1st and 5th day of the menstrual cycle
The male inserts his "gonopodium" into the females "cloaca" and "milt" is transfered into the female where the "ova" are fertilised. The fry can be released (born) after a gestation period of anywhere between 28 days and 3 months.
The HCG hormonne or pregnancy hormonne released by the fertilised egg burrowed in the uterus lining prevents the corpus luteum from desintigrating due to the feedback between the two
Oestrogen:A- Make changes in girls body as she starts to develop into adults.B- Causes the lining of uterus to thicken.progesterone:A- Produce by covpus leteum.B- Increase the lining of the uterus to prepare it for implantation.Answer By : Latifa From QatarI Hope it helps youWith My best regard
Take your pick: Estrogen, progesterone, oxytocin, luteinizing hormone (LH), follicle-stimulating hormone (FSH), human chorionic gonadotrophin (HCG)
yes. he doesn't have to actually touch the eggs. he releases his sperm into the water and as long as even the smallest amount of the 'fertilised' water can come in contact with the eggs than there is a possibility.
A complex interaction between the pituitary gland in the brain, the ovaries and the uterus work to create the perfect environment for ovulation (the release of an egg) to occur, for the sperm and egg to meet and for the fertilised egg to implant itself in the uterus.