QuestionSBA
QuestionChoice
This hormone is released by the pituitary and is mainly present in the follicular phase (before ovulation).

This hormone stimulates the growth of eggs in the ovaries and triggers the release of oestrogen from the granulosa cells that surround the follicles.
10005817
b
Follicle- stimulating hormone (FSH)
QuestionChoice
This hormone rises after ovulation.

Progesterone helps maintain the endometrial lining during the luteal phase after oestrogen has helped proliferation in the follicular phase.

The decrease in progesterone causes the lining to be shed and menstruation to begin.
10005818
c
Progesterone
QuestionChoice
This hormone rises during the follicular phase triggered by the FSH.

It helps the endometrium proliferate and triggers LH to be released for the initiation of ovulation.
10005819
d
Oestrogen
QuestionChoice
This surge occurs about 24-36 hours before ovulation.

It triggers the release of the egg from the ovary.
10005816
a
Luteinising hormone (LH)
QuestionChoice
This hormone is produced by the corpus luteum in the ovary if fertilisation occurs.
10005820
e
Human Chorionic Gonadotropin (HCG)
Concept
Chapter
2693
3841
Menstrual cycle
Topic
175
Reproductive Physiology
13710
A 38 year old woman attends a pharmacy asking for an ovulation test. She states she has a 28-day cycle.

The pharmacist explains that ovulation occurs 14 days before the menstrual period. Therefore she must take the test on days 10-14 after her menstrual period.

What hormone spikes just before ovulation that is measured in the ovulation test?
a