Unit 4: The reproduction, Natural Science

1. UNIT 4:
THE REPRODUCTION
Nuria Sánchez Parra
CEIP García Bellido

2. • After …después de
• All ….todo/a/os/as
• Also …también
• Amniotic sac …bolsa amniótica
• Around ….aproximadamente, alrededor
de
• Become….convertirse, llegar a ser
• Before …antes de
• Belly…vientre
• Besides…además
• Blood …sangre
• By means ….mediante
• Call…llamar
• Care…cuidado
• Cesarean …cesárea
• Come out …salir
• Contractions…contracciones
• Development…desarrollo
• Dilate …dilatarse
• Dilation…dilatación
• Embryo …embrión
• Expulsion…explusión
• Feeding ….alimento
• Feel …sentir, sentirse
• Fetus…feto
• Fill…llenar
• Fluid…líquido
• From … desde, de
• Give birth…dar a luz
• Happen…suceder, ocurrir
• Know …conocer, saberp’
• Now …ahora
• Perform…realizar
• Phases…fases
VOCABULARY

3. • Preemies ….bebés prematuros
• Pregnancy …embarazo
• Pregnant …embarazada
• Provide …proporcionar
• Ready …preparado
• Rhythmic …rítmico
• Sac …bolsa, saco
• Scar …cicatriz
• Stages …fases, etapas
• Surgery …intervención quirúrgica, cirugía
• Take places … tener lugar
• To be born … nacer
• Umbilical cord….corndón umbilical
• Until … hasta
• Womb…útero

4. The embryo development
When a woman becomes pregnant her
menstruation disappears until after the
baby is born. Pregnancy lasts about 9
months and ends in the labour.

5. During the first stages of the pregnancy the embryo
develops. Besides, different structures are created to
protect and provide foods to him. These structures are:
• The placenta. It is inside the womb, where the
implantation happens. The placenta takes nutrients and
oxygen from the mother’s blood to the embryo.
• The umbilical cord. It is made up of blood vessels that
connect the embryo to the placenta.
• The amniotic sac. It is a fluid filled sac that protects the
embryo.
Placenta
Umbilical cord
Amniotic sac

6. Fetal development
During the first stages of the pregnancy the organs
of the future baby are formed and during the
last stages the fetus grows.
• After three months the embryo has all its
organs. From now it is called fetus.
• After 5 months the mother can feel the fetus
movement and it is possible to know the sex of
the baby by ultrasound.
• After 9 months the baby is ready to be born. It
weighs around 3 kilos and measures around 50
cm. Preemies are born before 9 months and
they need special cares.

7. Video
The process of conception and embryonic
development

8. The fetus feeding and health depend on his
mother’s. It is very important that mothers
have healthy habits during the pregnancy.

9. Labour
Labour is the process of giving birth. It usually
happens after nine months of pregnancy.
The placenta and the umbilical cord leaves
with the baby.

10. Labour takes places in three phases:
• Dilation: the womb begins to dilate for the
baby to come out by means of rhythmic
contractions.
• Expulsion: the baby is born through the
vagina, which also dilates. The umbilical cord
is cut and its scar is the navel.
• After birth: the placenta comes out of the
mother’s body.

11. Video
The phases of the labour

12. If there is a problem, a cesarean is performed,
which is a medical surgery to take the baby out
of the mother’s belly.

13. ACTIVITIES
Complete to summarize
-In the first stages of the …………………………………………………,
the structures called ………………………………………..,
………………………………………………. and
……………………………………… are formed.
-After three months the embryo has all its
………………………………….., after 5 months the mother can feel
the fetus………………………………..and after 9 months the baby
is ready to………………………………………….
-………………………………………… takes place in three phases:
…………………………………….., …………………………………………. and
…………………………………………………….