This test aims at teaching
vocabulary related to the human body and reproduction, and tests
your knowlege of articles (an an, the), prepositions
(in, at, on, etc.) and pronouns (I, we, she, they, etc.).
Getting the Sperm and Egg
Together
Every day men create sperm
their testicles. When a man has
orgasm (and ejaculates), millions of
sperm are released within fluid which is called semen.
Once
month, a woman releases
egg from one of her ovaries. A passage
called a fallopian tube takes the egg from the ovary toward
uterus. The whole female system is
passageway: It goes from the ovary to
the fallopian tube, to the uterus, to the cervix, to the vagina,
and finally to outside world.
If ejaculation occurs during sex,
millions of sperm are released into the vagina of the woman,
where race through the cervix, then
the uterus and
the fallopian tubes hoping to find
egg.
If sperm and egg meet and join
this is called fertilization.
From Fertilized Egg to Baby
But even that isn't quite enough to make
baby: The fertilized egg needs a
place to hang on.
Each month
woman's brain sends out hormones
that cause changes in
uterus. At one point
the cycle, her body creates a potential
home for the fertilized egg in the wall of her uterus. A woman
can only become pregnant during the days when the uterus is
ready. If the fertilized egg doesn't attach during this part of
her menstrual cycle, it's all expelled from her body as part of
period .
Pregnancy starts when the
fertilized egg attaches
the uterus.
Once it's attached to the wall of
the uterus,
egg grows into an embryo and
eventually a fetus. As the embryo develops
a fetus, a placenta develops. The
placenta is an organ that connects the mother to the child. It
supplies nutrients the fetus and takes away waste.
The Body's Changes
A woman's body goes through many changes during pregnancy.
gains weight to help keep the
fetus growing and protected. She produces more blood, so that
there's enough for two bodies instead of one. Towards
end of her pregnancy, a woman's breasts
enlarge and get ready to produce milk. And
preparation for the final delivery of
the baby, some muscles and ligaments relax, so that
has room to get out.
The entire process, from
ejaculation to delivery, takes about 40 weeks.
ශිල්ප 64