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Reproductive system:
We call reproductive system to all the organs involved in the process to create a new human.
There are:
Male organs
Female organs
Female reproductive system
Female reproductive system
Ovary: The place where ovules are stored.
Fallopian tube: A tube that connects the ovary with the uterus.
Uterus: The place where foetus develops and grows until it is ready to be born.
Cervix: The connection between the uterus and the vagina.
Vagina: It is the connection between the female organs and the exterior.
Vulva: It is the part you can see from the exterior.
Male reproductive system
Male reproductive system
Testicle/ Testes: It is the place where sperm is created.
Scrotum: the bag of skin that contains the testicles.
Seminal vesicle: It produces some liquid for sperm to move better.
Vas deferens: They are the tubes that connect testicles with the seminal vesicle.
Prostate: a gland that produces some of the fluid part of semen.
Penis: the male reproductive organ, it has inside a tube called urethra.
Urethra: It is the tube through which sperm and urine go out.
HOW THE REPRODUCTION WORKS?
HOW THE REPRODUCTION WORKS?
SPERM+OVULE = BABY
SPERM+OVULE = BABY
Sperm is the male cell that will join with the female cell: the ovule.
Ovules are released when girls grow. They release one every 28 days.
When sperm enters the woman's body it tries to find the ovule. To do that it has to go up through the cervix and uterus to meet the ovule in the fallopian tube.
If the ovule is not fertilized (if it does not meet any sperm) it will go outside the woman's body. We call it period.
Only one sperm can enter inside the ovule. When it happens the ovule has all the information to start the process to create a baby.
Pregnancy
Pregnancy
It takes the body 9 months to "create" a baby.
At the beginning the fertilized ovule is in the fallopian tube and starts duplicating the cells. At this point the baby is called zygote.
Once the zygote is in the uterus in week 8, it is called embryo.
Step by step the embryo develops the spinal cord, the first part of the brain, the heart and all the organs. When it starts looking like a tiny baby (3rd month aprox) we stop calling it embryo and we call it foetus or fetus.
LABOUR AND DELIVERY
LABOUR AND DELIVERY
BoDY CHANGES
BoDY CHANGES
When we are born we don't look the same than when we grow. While we are children boys and girls look the same except for the reproductive organs.
Then we start changing:
Girls:
They start changing sooner than boys.
The body becomes bigger.
The waist becomes wider (so that a baby can be born).
The breasts start growing.
There is more hair on the body.
The body starts releasing ovules once a month: period.
Boys:
The voice starts changing and becomes lower.
The shoulders become wider and develop bigger muscles.
The reproductive organs (penis and testicles) grow and start producing sperm.
There is much more hair appearing in the body (beard, moustache,...).
The Adam's apple appears.
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