Hormones & the Menstrual Cycle Flashcards

All 5 cards in this deck

What happens during menstruation (around days 1–5 of the menstrual cycle)?

The lining of the uterus breaks down and is lost through the vagina.

What happens at ovulation, around day 14 of the menstrual cycle?

An egg (ovum) is released from a follicle in the ovary.

What is the role of oestrogen in the menstrual cycle?

It makes the uterus lining repair and thicken after menstruation.
Oestrogen is produced in the ovaries.

State two effects of progesterone on the uterus lining.

The lining is maintained/thickened, and the number and size of its blood vessels increase, preparing it for an ovum to implant.

What happens to the uterus lining when the level of progesterone falls?

It breaks down and is lost, so menstruation begins.