Menstural cycle

Question 1

What are the 2 phases

Answer 1

Ovarian and uterine

Question 2

What are the phases of the ovarian

Answer 2

Follicular and luteal

Question 3

What are the phases of the uterine

Answer 3

Menstrual, proliferative, secretory

Question 4

What happens in the early follicular phase

Answer 4

No ovarian hormones,
increase FSH which then causes follicular growth and theca interna cells to appear and produce oestrogen
Dominant follicle the granulosa cells start to produce inhibin

Question 5

What cells produce inhibin

Answer 5

Granulosa cells in dominant follicile

Question 6

What happens in late follicular phase

Answer 6

Oestrogen and inhibin causes negative feedback to FSH
Also increase LH receptors
Increase theca cells to produce oestrogen

Question 7

Ovulatory phase

Answer 7

Day 14
Positive feedback = LH surge = ovulation
Granulosa cells produce progesterone

Question 8

What meiosis is complete

Answer 8

Just 1

Question 9

When does meiosis 2 complete

Answer 9

After fertilsation

Question 10

What happens in luteal phase

Answer 10

Follicle leutinized = corpus L
O and P secreted in large quantities
Negative feedback = low Lh and FSH

Question 11

What happens in uterine cycle

Answer 11

Oestrogen causes proliferation of epithelium

O and P cause secretory epithelium

Question 12

What are the uterine layers

Answer 12

Endo, myo, peri

Question 13

What are the layers of endometrium

Answer 13

Function and basal

Question 14

What does does the endometrium look like in early proliferative phase

Answer 14

Spare glands, straight

Question 15

What does the endometrium look like in late proliferative phase

Answer 15

Thicker functional layer, glands coiled

Question 16

What does the endometrium look like in the secretory phase

Answer 16

Max thickness, very coiled glands and arteries

Question 17

What happens at the end of the cycle

Answer 17

Corpus L to A
Fall in O, P and I
Loss of neg feedback
FSH rise
New cycle

Question 18

If fertilised what happens

Answer 18

hCG from syncytiotrophoblasts extend Corpus L life

Question 19

What mucus does P produce

Answer 19

Thick, acidic

Question 20

What mucus does O produce

Answer 20

Thin, alkaline

Question 21

What effect does P have

Answer 21

Breast, temperature, metabolic, electrolyte

Question 22

When is O and P highest

Answer 22

Follicular and luteal