What does Provera really do? (Not depo provera the birthcontrol)?

I follow the point of taking Provera...to restart your menstrual cycle. But what exactly does Provera do internally to your body? Does it "clog" up the blood for a bit, close to lull it...and after once you're done taking the pills after 10 days, the "doorway" for the blood open again? Or does it do something entirely different.

I'm trying to look up answers on google/yahoo look into but in that's more info on depo provera...
Answers:

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Provera is vitally the hormone progesterone. This hormone is customarily secreted surrounded by larger quantity during pregnancy. It cause the pool liner of the uterus to build up, afterwards when you budge past its sell-by date the medication, the withdrawl from the drug make your body shed the uterine bin liner. It works much like mode birth control does, one and only doctors use larger doses for shorter period of time to bestow you your time of year surrounded by a business of a week or two.