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Menstrual Cycle

Science

QuestionAnswer
The menstrual cycle is a series of changes in the ____________ and ________. Ovaries and uterus.
How long is the menstrual cycle? About 28 days.
Stimulates the wall of uterus to thicken with blood vessels to prepare the uterus for possible pregnancy. Estrogen.
Where is estrogen secreted from? The ovaries.
Causes follicles in the ovaries to begin developing to prepare for menstruation. Follicle Stimulating Hormone (FSH).
What is FSH secreted by? Pituitary gland.
LOOK AT DIAGRAM :D
The ovaries secrete estrogen, egg matures in the ovarian follicle. Follicle stage.
Egg is released from the follicle in the ovary and into the Fallopian tube. Ovulation stage.
The progesterone secreting yellow body in the ovary, forms when LH causes a ruptured follicle to fill with cells. Corpus Luteum stage.
The shedding of some of the uterine lining, the unfertilized egg, and a small amount of blood through the vagina. Menstruation stage.
Menstrual cycle stops permanently, occurs between the ages of forty five and fifty. Menopause.
Created by: emarciante9