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Menstrual Cycle
Science
Question | Answer |
---|---|
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. |