W31/L9

Question 1

What happens in the proliferative phase of the menstrual cycle?

Answer 1

A new uterine lining grows

Question 2

What is the proliferative phase aka?

Answer 2

Follicular

Question 3

What is the secretory phase aka?

Answer 3

Luteal

Question 4

Which of the phases tend to be consistent in length & how long is it?

Answer 4

Luteal - 14 days

Question 5

How many mature ovums can be formed by a single oogonium?

Answer 5

Just 1

Question 6

What does the mature corpus luteum become?

Answer 6

The corpus albicans

Question 7

When in the cycle does the basal body temperature increase?

Answer 7

Just after ovulation

Question 8

Where in the reproductive tract does fertilisation occur?

Answer 8

The fallopian tube

Question 9

What is the zona pelucida?

Answer 9

A glycoprotein coat around the ovum that protects it

Question 10

What’s happening in the uterus in the early follicular phase?

Answer 10

Menstruation

Question 11

What’s happening in the anterior pituitary in the late luteal phase

Answer 11

Rise in FSH & LH release

Question 12

What’s happening in the hypothalamus in the late luteal phase?

Answer 12

Tonic secretion of GnRH is resumed

Question 13

What’s the effect of a rise in FSH in the late luteal phase?

Answer 13

New follicles begin to develop

Question 14

What’s happening to the granulosa cells in the early follicular phase?

Answer 14

They take androgens from the thecal cells, and convert them into oestrogens.

They also secrete antral fluid to create an antrum

Question 15

What marks the step into the late follicular phase?

Answer 15

Cessation of menstruation due to the high oestrogen levels from the follicular cells

Question 16

At the start of the late follicular phase, how many developing follicles do we still have?

Answer 16

1

Question 17

What are the granulosa cells secreting in the late follicular phase?

Answer 17

Oestrogen
Progesterone
Inhibin

Question 18

What is the oestrogen in the early follicular phase doing to GnRH release?

Answer 18

Inhibiting it via negative feedback.

Question 19

What is the oestrogen in the late follicular phase doing to GnRH release?

Answer 19

Enhancing it via positive feedback

Question 20

Why is there an LH surge in the late follicular phase?

Answer 20

The positive feedback of oestrogen on GnRH

Question 21

What does the LH surge initiate in the ovary

Answer 21

The first meiotic division of the oocyte (forming a 2” oocyte)

Ovulation ~ a day later

Question 22

Why doesn’t FSH surge as much as LH?

Answer 22

It’s being suppressed a bit by inhibin and oestrogen

Question 23

What is happening in the cervix during the late follicular phase?

Answer 23

It produces copious amounts of thin, stringy mucus to facilitate sperm entry