Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: Lekale on 12/05/2009 12:30:02

Title: What is happening when a woman menstruates?
Post by: Lekale on 12/05/2009 12:30:02

Lekale asked the Naked Scientists:
   
What exactly are womens' "periods"? What's actually happening when a woman is on her periods?
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Kind Regards,
Lekale-Leru Mashego

What do you think?

Title: What is happening when a woman menstruates?
Post by: Chemistry4me on 13/05/2009 06:06:11

The period occurs roughly once every 28 days when the smooth muscle of some of the arteries in the endometrium go into spasm, this cuts off the blood supply to these muscles. As a result, most of the endometrium dies and comes away as blood and dead cells.