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A period (more technically known as a menstrual cycle) is the result of hormonal changes occurring in your body on a regular basis as your body prepares itself for the possibility of carrying a child.
Every month, your body produces a hormone called estrogen, the purpose of which is to produce an egg from your ovaries and to build a fertile lining in your uterus to support the egg if it is fertilized. After the egg is released from the ovary, it travels into the fallopian tube into the uterus, where if you have had sex, it may be fertilized and attach to the uterine lining, where it will grow into a baby. The space where the egg was becomes a luteal cyst and begins to secrete progesterone, which keeps the lining of the uterus healthy for the growing baby.
If the egg is unfertilized, after a few days the progesterone hormone levels fall and the uterine lining begins to weaken and shed, what you know as your "period."
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Do vampires have periods?
Yes Vampires have periods. Even though they are dead creatures they do have periods. It may come as a shock but all vampired have periods even males.
How did periods occur?
Periods are the shedding of the uterine lineing when an egg is not fertilised.
Can boys get periods?
No.
Why do girls have monthly periods?
Girls get periods to prepare their bodies to have a baby when they are older. The blood comes from inside the uterus, in which the wall of the uterus sheds a fluid containing blood that isn't needed. It is needed when you get pregnant. That's why you miss periods if you are pregnant.
Why do girls get periods while guys get nothing?
Girls get periods and they have it so that while ovulating (getting her period) and has sex she can become pregnant. Men don't have periods because they carry sperm to help get a woman pregnant. And you know that men can't have babys.
How should one count your periods cycle from the starting of the periods or ending of the periods?
The starting AND ending of your periods. :)
Are periods horizontal rows on the periodic table?
rows. the vertical columns are called periods
Periods of the periodic table?
7 periods
What are the periods in the periodic table?
the periods are the rows
Do fish have periods?
No - only mammals have periods.
What is the rows in the periodictable called?
periods, they are periods
Does a koala bear tend to move for short periods of time or long periods?
they dont have periods.
What are characteristics of periods in the periodic table?
Periods have same shells. There are 7 periods in periodic table.
What dinosaur periods where there?
The main dinosaur periods were the Triassic, Jurassic and Cretaceous periods. they were in the mesozoic era. there were other periods before dinosaurs like the carboniferous.
What are the horizontal rows of a periodic table known as?
The horizontal rows are known as periods.
Do vampires have periods?
Yes Vampires have periods. Even though they are dead creatures they do have periods. It may come as a shock but all vampired have periods even males.
How many periods in the periodic table of elements?
there are 7 periods in the periodic table118
