Female Menstrual Cycle 4.8

Question 1

which days does the flow phase occur?

Answer 1

days one to five

Question 2

what hormone is secreted during the flow phase (FSH or LH) and where is it secreted from?

Answer 2

the female follicle stimulating hormone is secreted by the anterior pituitary

Question 3

which days does the follicular phase occur?

Answer 3

follicular phase occurs during days 6-13

Question 4

what hormone is secreted by follicles during the follicular phase? where is it secreted from?

Answer 4

estrogen is secreted by the follicle cells in the ovary

Question 5

what day does ovulation occur?

Answer 5

Ovulation occurs at day 14

Question 6

Where is LH and FSH secreted from?

Answer 6

Female LH and FSH secreted from the anterior pituitary

Question 7

What days does the luteal phase occur?

Answer 7

Luteal phase occurs between days 15-28

Question 8

What hormones are secreted during the luteal phase? Where are these hormones secreted from?

Answer 8

Estrogen and progesterone are secreted by the corpus luteum

Question 9

What does estrogen do in the luteal phase? How does it behave?

Answer 9

Estrogen further prepares the uterus for pregnancy

A second estrogen spike occurs

Question 10

What is the job of progesterone during the luteal phase? (3)

Answer 10

Prepares uterus for pregnancy by thickening the endometrium

Inhibits further ovulation by negative feedback inhibiting release of LH and FSH

Hold embryo in place by preventing uterine contractions

Question 11

What happens if fertilization did not occur during the luteal phase?

Answer 11

Progesterone and estrogen levels drop

Uterus contracts and sheds the endometrium

Question 12

what happens during the flow phase?

Answer 12

shedding of the endometrium (menstruation)

Question 13

Why does the thickening of the endometrium occur?

Answer 13

thickening of the endometrium is the uterus preparing for pregnancy

Question 14

why is FSH secreted during the flow phase?

Answer 14

it stimulate the development of the follicle in the ovary

Question 15

what happens during the follicular phase (specifically to the oocyte)?

Answer 15

follicles develop in the ovary. primary oocyte undergoes meiosis however there is unequal division of cytoplasm and nutrients. So the cells that receive majority of the material becomes the secondary oocyte and contains 23 chromosomes

Question 16

How do eggs develope during ovulation?

Answer 16

As the cells surrounding the egg develop, a fluid filled cavity forms. Eventually it balloons outward until blood vessels along the outer wall collapse. The wall bursts and the ovum is released. The surrounding follicle remains within the ovary and differentiates into the corpus luteum.

Question 17

What happen happens to estrogen during ovulation phase?

Answer 17

Hormone: estrogen production peaks

Question 18

What happens during the luteal phase?

Answer 18

Stimulation of the endometrium to prepare the uterus for the egg

Question 19

What happens if fertilization does not occur during the luteal phase?

Answer 19

If fertilization does not occur, weak uterine contractions make the endometrium pull away from the uterine wall causing the start of the cycle all over again

Question 20

what happens when LH and FSH are secreted during the luteal phase?

Answer 20

Lutenizing hormone and follicle stimulating hormone come back up to restart the cycle and prepare for the release of another egg

Question 21

how does estrogen behave during the follicular phase?

Answer 21

estrogen secretion continues to secrete during oocyte development

Question 22

what do spikes in LH and FSH do?

Answer 22

this stimulates ovulation and the synthesis and maintenance of the corpus luteum