Welcome Back

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Welcome Back
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32 weeks

• The fetus became baby like
• The head was proportional to the body

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36 weeks

• The skin became pink in color
• The body became fat since fat was accumulated in
  the body
• The hair was about 5cm long

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40 weeks

• The body looked fat
• The fetus may hurt himself by his fingers

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Exchange of nutrient and waste

• Since every person has to eat so as to survive
  and have to secrete all the wastes from
• their body. For a fetus, the chorionic will
  present a large area for the exchange of
• material and fetal blood flow in opposite
  direction. This counter-current flow leads to
• more efficient exchange. Oxygen, water, amino
  acid, glucose, essential minerals, etc.
• are transferred from material to fetal blood to
  nourish the developing fetus.
• Carbon dioxide, urea and other wastes are
  transferred from fetal to maternal blood to
• allow their excretion by the mother and prevent
  harmful accumulation in the fetus. It
• also allows certain maternal antibodies to pass
  into the fetus, providing it with some
• immunity against disease.

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Birth 1
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Birth 2
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Birth 3
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Birth 4
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Birth 5
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Labor and delivery

• After 40 weeks, it was time for the baby to come
  out. Every pregnant woman should be familiar
  with three definite signs that delivery is
  imminent regular contractions, ruptured
  membranes (waters breaking) and a show of
  mucus sometimes mixed with blood.
• Uterine contractions are felt by most women at
  odd times throughout the last weeks of pregnancy.
  There isolated contractions cause the uterus to
  become as hard as a ball for one or more minutes.
  As delivery approaches, these contractions
  become strong and increasingly regular.

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• Contractions at intervals of less than ten
  minutes are fairly reliable indication that labor
  has begun. These contractions have been called
  labor pains since time immemorial, since they
  are-ate a later stage, though generally not
  initially-associated with pain. If the woman is
  upright, she stops and braces herself during the
  contractions, perhaps leaning against a chair or
  a wall. When the contractions are occurring
  about every five minutes, it is normally time for
  admission to the hospital. If the woman feels
  unsure, the best course of action is to call the
  doctor or midwife.

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• Labor sometimes begins with amniotic sac (bag of
  waters) has ruptured. Before labor starts or in
  the first stage, the plug of mucus in the cervix
  loosens and passes out of the vagina. This plug
  is often slightly mixed with blood and may have
  loosened in conjunction with negligible
  contractions that the woman has not even felt.
  It was time for the baby to come out.
• The umbilical cord is cut immediately after
  birth, although the placenta remains in the
  uterus, where it gradually begins to come loose.
  In the third and final stage of labor, the mother
  must bear down for the last time, and the
  placenta is expelled. The uterus can now
  contract, gradually returning to its original
  size.

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• From the above, we have taught about how a baby
  came out from his mothers body. If you want to
  see a more real pictures of this. We can take
  out the video tape we provided. It will
  introduce to you the process of fertilization and
  explains how the fertilized cell develops into an
  embryo. You can also observe the development of
  the embryo into a fetus.
• Then, in the next part, we will tell you some
  cases which lead to a baby cannot be born. You
  can move on to our handouts.
• END