The Development of a Baby

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The Development of a Baby
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The Development of a Baby

• The very first thing which occurs in the
  development of a new human life is conception, or
  fertilization.
• When the sperm penetrates the egg, changes occur
  in the protein coating around it to prevent other
  sperm from entering. At the moment of
  fertilization, your baby's genetic make-up is
  complete, including its sex

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The Development of a Baby

• This is the unborn baby at only 30 hours after
  conception
• Magnified here, it is no larger than the head of
  a pin. Still rapidly dividing, the developing
  embryo, called a zygote at this stage, floats
  down from the fallopian tube and towards the
  uterus.

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The Development of a Baby

• The next stage in the development of a child is
  implantation
• Implantation
• Within 24-hours after fertilization, the egg
  begins dividing rapidly into many cells. It
  remains in the fallopian tube for about three
  days. The fertilized egg (called a zygote)
  continues to divide as it passes slowly through
  the fallopian tube to the uterus where its next
  job is to attach to the endometrium (a process
  called implantation). First the zygote becomes a
  solid ball of cells, then it becomes a hollow
  ball of cells called a blastocyst. Before
  implantation, the blastocyst breaks out of its
  protective covering.
• Within three weeks, the blastocyst cells begin
  to grow as clumps of cells within that little
  ball, and the baby's first nerve cells have
  already formed. Your developing baby is called an
  embryo from the moment of conception to the
  eighth week of pregnancy. After the eighth week
  and until the moment of birth, your developing
  baby is called a fetus.

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The Development of a Baby

• As we can see in a very few short weeks the baby
  is already starting to develop itself more and
  more quickly in a very short amount of time.

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The Development of a Baby
Week 3 At this point, the blastocyst, or
developing embryo, is looking for a spot to
implant in the uterus. Early formation of the
central nervous system, backbone, and spinal
column has begun. The gastrointestinal system has
also begun to develop with the kidneys, liver,
and intestines forming. The heart has begun to
form.

• This is the baby at 4 weeks old

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The Development of a Baby

• The embryo's tiny heart begins to beat by day
  twenty-one. The brain has developed into 5 areas
  and some cranial nerves are visible. Arm and leg
  buds are visible and the formation of the eyes,
  lips, and nose has begun. The spinal cord grows
  faster than the rest of the body giving a tail
  like appearance which disappears as the embryo
  continues to grow. The placenta begins to provide
  nourishment for the embryo.

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The Development of a Baby

• At week 7
• Major organs have all begun to form. The embryo
  has developed its own blood type, unique from the
  mother's. Hair follicles and nipples form and
  knees and elbows are visible. Facial features are
  also observable. The eyes have a retina and lens.
  The major muscle system is developed and the
  embryo is able to move.

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The Development of a Baby

• Week 7 pictures of the baby

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The Development of a Baby

• Weeks 8-12
• The embryo is reactive to its environment inside
  the amniotic sac where it swims and moves. Hands
  and feet can be seen. At the end of week 8, the
  embryonic period is over and the fetal stage
  begins.
• the heart is almost completely developed and the
  heart rate can be heard on a Doppler machine at
  the doctor's office. Most major organs and
  tissues have developed and red blood cells are
  now produced in the liver. The face is well
  formed and the eyes are almost fully developed.
  The eyelids will close and not reopen until the
  28th week. Arms, hands, fingers, legs, feet, and
  toes are fully formed. Nails and earlobes start
  to form and tooth buds develop in the gums. Fetus
  can make a fist with its finger. Testosterone
  (male sex hormone) is produced by the testes in
  male fetus.

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The Development of a Baby

• Weeks 13-20
• The brain is fully developed and the fetus can
  suck, swallow, and make irregular breathing
  sounds. Fetus can feel pain (New England Journal
  of Medicine). Fetal skin is almost transparent.
  Muscles tissue is lengthening and bones are
  becoming harder. Liver and organs produce
  appropriate fluids. Eyebrows and eyelashes appear
  and the fetus makes active movements including
  kicks and even somersaults.
• Quickening (when the mother can feel the fetus
  moving) usually occurs around this time. Finger
  and toenails appear. Lanugo, a fine hair now
  covers the entire body. The fetus can hear and
  recognize the mothers voice. Sex organs are
  visible on ultrasound devices.

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The Development of a Baby
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The Development of a Baby

• Weeks 24-32
• A protective waxy substance called Vernix covers
  the skin. By birth, most of the Vernix will be
  gone but any that is left is quickly absorbed.
  Fetus has a hand and startle reflex. Footprints
  and fingerprints are forming. Fetus practices
  breathing by inhaling amniotic fluid into its
  developing lungs.
• Rapid brain development occurs during this
  period and the nervous system is able to control
  some bodily functions. The fetus eyelids now
  open and close. At 25 weeks there is a 60 chance
  of survival if born. The fetus is considered
  legally viable at 28 weeks and there is a 90
  chance of survival if born at this point.

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The Development of a Baby
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The Development of a Baby

• Weeks 38-40
• The fetus is considered full-term. Lanugo is
  gone except on upper arms and shoulders. Hair on
  the babys head is now coarser and thicker. The
  lungs are mature. The average weight of the baby
  at this point is seven and a half pounds. At
  birth the placenta detaches from the uterus and
  the umbilical cord will be cut as the baby takes
  his first breaths of air. Breathing will trigger
  changes in the heart and bypass arteries forcing
  all blood to now travel through the lungs.

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Doctors Opinions on when life begins

• The late Dr. Jerome LeJeune, Professor of
  Genetics at the University of Descartes in Paris,
  and discoverer of the genetic cause of Down
  Syndrome said, "After fertilization has taken
  place and a new human being has come into being. 
  It's no longer a matter of taste or opinion, and
  not a meta-physical condition, it is plain
  experimental evidence." 5
• Professor Micheline Matthews-Roth, Harvard
  University Medical School  It is incorrect to
  say that biological data cannot be decisive...It
  is scientifically correct to say that an
  individual human life begins at conception." 6
• Professor Hymie Gordon, Mayo clinic  "By all
  criteria of modern molecular biology, life is
  present from the moment of conception." 7

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Cont.

• Ashley Montague, Geneticist and Professor at
  Harvard and Rutgers, who is unsympathetic to the
  pro-life cause, said clear, "The basic fact is
  simple"  Life begins not at birth, but
  conception."
• Dr. Landrum Shettles served twenty-seven years as
  attending obstetrician-gynecologist at
  Columbia-Presbyterian Medical Center in New
  York.  He was a pioneer in sperm biology,
  fertility, and sterility and is internationally
  famous for discovering male-and female-producing
  sperm.  His intrauterine photographs of pre-born
  children appear in over fifty medical textbooks. 
  Dr. Shettles states, "I oppose abortion...because
  I accept what is biologically manifest--that
  human life commences at the time of
  conception--and...because I believe it is wrong
  to take innocent human life under any
  circumstances.  My position is scientific,
  pragmatic and humanitarian." 9

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Medical Textbooks and Scientific Reference Books

• Dr. Bradley M. Patten's textbook, Human
  Embryology, states, " It is the penetration of
  the ovum by a spermatazoan and the resultant
  mingling of the nuclear material each brings to
  the union that...marks the initiation of the life
  of a new individual." 1
• Dr. Louis Fridhandler in the medical textbook
  Biology of Gestation, refers to fertilization as
  "that wondrous moment that marks the beginning of
  life for a new individual." 2
• Time and Rand McNally's Atlas of the Body states,
  "In fusing together, the male and female gametes
  produce a fertilized single cell, the zygote,
  whch is the start of a new individual." 3
• Encyclopedia Britannica, says, "A new individual
  is created when the elements of a potent sperm
  merge with those of a fertile ovum, or egg." 4

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Websites

• http//www.wpclinic.org/parenting/fetal-developmen
  t/first-trimester/
• http//www.goodsearch.com/Image.aspx?imgurlhttp/
  /www.praize.com/teens/jesusfreak1p211/7weeks.jpgt
  hurlhttp//sp1.mm-a1.yimg.com/image/2000604309ru
  rlhttp//www.praize.com/teens/jesusfreak1p211/bab
  y_pics.shtmltt716no1name7weeks.jpgw300h4
  85size83.3typejpeg
• http//www.webmd.com/baby/guide/understanding-conc
  eption
• http//youtube.com/watch?vO2l1-kvKomg
• Goodsearch.com
• http//www.nebcathcon.org/Proof20of20Life.htmRe
  veal