Human Development

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Human Development

• By Brittney Ryan and Madison Carrasca

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Basic Information

• Refers to the biological and psychological
  development of the human being through out the
  life span.
• Consists of development from infancy, childhood,
  and adolescence to the adulthood.
• Also known as Developmental Psychology.

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Week 1-4

• The connections between the mother and the embryo
  begins.
• The umbilical cord begins to form.
• The embryos growth centers around the axis,
  which will become the spine and spinal cord.

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Week 5-6

• Chemicals produced by the embryo stop the womens
  menstrual cycle.
• Brain activity is shown at the 6th week.
• The heart will begin to beat around the same
  time.
• Limb buds appear where the arms and legs will
  appear.
• Organogenesis begins.
• The head represents about one half of the
  embryos axial length.

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Week 7-8

• The embryos blood type becomes apparent.
• The embryo is capable of motion.
• The eyes begin to form.
• Organogenesis and growth continue.
• At the end of the 8th week, the embryonic stage
  is over and the fetal stage begins.

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8th Week

• All major structures are shown, including the
  hands, feet, head, brain, and other organs are
  present but they continue to grow and develop.
• The fetus is about 1.2 inches in length and the
  heart is beating.
• The fetus can make general movements and startles
  that involve the whole body.
• Some fingerprint motion can be seen.

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8-15 Weeks

• The fetus continues to move in distinct patterns.
• It also picks up new movements of the arms, legs,
  and starts to hiccup and breathing-like
  movements. It also stretches and yawns.
• At nine weeks the fetus is able to bend its
  fingers around objects.
• In response to a touch of a foot, the fetus will
  bend its legs or curl its toes to move away from
  the object.
• The face is well-formed and begins to look more
  like a human.
• The different in appearance of the genitals in
  males and females is shown.
• A fine layer of hair develops on the head.
• More muscle tissue and bones have developed.

8
16-25 Weeks

• Eyebrows, eyelashes, fingernails, and toenails
  appear.
• The nervous system develops enough to control
  some body functions.
• The respiratory system has developed.
• The mother can feel fetus movements at 18-19
  weeks.

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26-38 Weeks

• Fingernails begin to reach the end of the
  Fingertips.
• Small breast buds are present on both sexes.
• Head hair becomes more thicker.
• The fetus is considered full-term by week 35.
• The fetus maybe 19-21 inches in length when born.

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Birth to 1 Month(Physical and Language)

• Feedings 5-8 per day
• Sleep 20 hours per day
• Sensory Capacities makes basic distinctions in
  vision, hearing, smelling, tasting, touch,
  temperature, and perception of pain

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2-3 Months(Physical and Language)

• Sensory Capacities color perception, visual
  exploration, oral exploration.
• Sounds cries, coos, grunts
• Motor Ability control of eye muscles, lifts head
  when on stomach.

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4-6 Months(Physical and Language)

• Sensory Capacities localizes sounds
• Sounds babbling, makes most vowels and about
  half of the consonants
• Feedings 3-5 per day
• Motor Ability control of head and arm movements,
  purposive grasping, rolls over.

13
7-9 Months(Physical and Language)

• Motor Ability control of trunk and hands, sits
  without support, crawls about.

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10-12 Months(Physical and Language)

• Motor Ability control of legs and feet, stands,
  creeps, apposition of thumb and force-finger.
• Language says one or two words, imitates sounds,
  responds to simple commands.
• Feeding 3 meals, 2 snacks
• Sleep 12 hours, 2 naps

15
1-1 ½ Years(Physical and Language)

• Motor Ability Creeps upstairs and walks (10-20
  min)
• Can draw lines on paper with crayons

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1 ½- 2 Years(Physical and Language)

• Motor Ability Runs, kicks a ball, builds six
  cube towers, capable of bowel and bladder control
• Language Vocabulary of more than 200 words
• Sleep 12 hours at night, 1-2 hour naps

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2-3 Years(Physical and Language)

• Motor Ability Jumps off of steps, rides a
  tricycle, uses crayons, and builds a 9-10 cube
  tower
• Language Starts to use short sentences, controls
  and explores the world with language, stuttering
  may appear briefly

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3-4 Years(Physical and Language)

• Motor Ability Stands on 1 leg, jumps up and
  down, draws and circle and cross, and self
  sufficient in many routines in home life

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4-5 Years(Physical and Language)

• Motor Ability Mature motor control, skips, broad
  jumps, dresses his or her self, copies a square
  and triangle
• Language Talks clearly, uses adult speech sound,
  has mastered basic grammar, relates a story, and
  knows over 2,000 words

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Sources

• http//en.wikipedia.org/wiki/Psychosexual_developm
  ent
• http//childdevelopmentinfo.com/development/normal
  development.shtml
• http//en.wikipedia.org/wiki/Embryo
• http//en.wikipedia.org/wiki/Fetus