Menstrual cycle Flashcards
When is the purpose of the menstrual cycle?
prepares women’s body for pregnancy.
How long is the cycle?
28 days BUT can be 21 or 45 days long
when does this cycle start?
during puberty
The flow of the blood is called?
menstruation or a period
What happens in days 1-5 of the cycle?
A thick layer of sponge tissue filled with blood breaks down and passes through vagina.
An ovum stars to mature.
What happens in days 6-14 of the cycle?
New layer of spongy tissue starts to form
Mature ovum is released from ovary into Fallopian tube.
What happens in days 15-28 in the cycle?
Spongy tissue of endometrium gets thicker.
Ovum travels to uterus (3-5 days)
If ovum is not fertilised it passes through uterus and out vagina.
Endometrium also breaks down and pulls away from uterus and the cycle starts again.