Menstrual cycle

Question 1

Follicular phase

Answer 1

Proliferative phase
Variable in length
Growth fastest during 2nd week of proliferative phase

Question 2

Luteal phase

Answer 2

Secretory phase
Usually 14 days

So ovulation day + 14 days = menstruation

Question 3

Estrogen

Answer 3

Stimulates endometrial proliferation

Question 4

Progesterone

Answer 4

Maintains endometrium to support implantation

so low progesterone, low fertility

Question 5

Time line

Answer 5

high estrongen
LH surge
Ovulation
Progesterone (from corpus luteum)
Progesterone falls
Menstruation (via apoptosis of endometrial cells)

Question 6

Oligomenorrhea

Answer 6

> 35 days cycle

Question 7

Polymenorrhea

Answer 7

<21 days

Question 8

Metrorrhagia

Answer 8

frequent but irregular menstruation

Question 9

Menometrorrhagia

Answer 9

Heavy, irregular mensturation at irregular intervals.

Question 10

Ovulation

Answer 10

High estrogen (when high, reversed effect on LH secretion),
High GnRN receptor on anterior pituitary
Estrogen surge then stimulates LH release, causing ovulation (rupture follicle)

Increased temperature (progesterone induced)

Question 11

Mittelschmerz

Answer 11

Blood from ruptured follicle or follicular enlargement causes peritoneal irritation that can mimic appendicitis.