Human reproduction by Luis

LUIS HERNANDEZ CARDENAS6º B COLEGIO M. MILAGROSA

ENERO DE 2013

The reproductive systems are the primary

sexual characteristics.

We already have them when we are born,

and they are different male from female

Girls develop breasts

Boys get facial hear

TESTICLES-they produce sperm , they are

outside of de body and they are covered of a

skin´s bag called scrotum

VAS DEFERENS-take the sperm from the

testicles to the urethra

URETHRA-takes the sperm outside the body

SEMINAL VESICLES-PROSTATE-send

seminal liquid to the urethra

PENIS- it´s outside from the reproductive

system

OVARIES-produce the ova

UTERUS-is where baby develops

FALLOPIAN TUBES-connect the ovaries to

the uterus

VAGINA-connects the uterus to the outside of

the body

VULVA-is the external part of the female

reproductive system

Pregnancy lasts about 9 months

The placenta takes nutrients from the mother´s

blood and gives it to the baby

The umbilical cord connects the baby to the

baby

The amniotic sac protects the embryo

After 3 months the embryo has got all the

organs

After 5 months the baby develops and he

moves and the mother feels it

After 9 months the baby is already to be

born

Is the process of giving birth

It has got 3 states

DILATATION

Opening of the vagina and vulva

The baby is born and the doctor cuts the

umbilica cord

The placenta comes out of the mother´s

body

The end