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Human Development

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Human Development - Page Text Content

FC: Human Development By Rajeev Rajagopalan

1: Week 1: Life is Created Life begins when Mitosis sparks off cell division, which provides specific functions to different cells. The zygote moves into the uterine wall and becomes a blastocyst. Differentation will allow for cells formed during mitosis to take specific function.

2: Week 2 During week 2, the amniotic cavity forms which protects and nourishes the blastocyst until the placenta is fully developed. At week 2 the placenta begins to develop.

3: Week 3 At week 3, the baby becomes the size of a sesame seed, this growth rate is incredible because within 2 weeks the baby goes from being only a few cells large to the size of a sesame seed. By day 21 the heart begins to beat although it is far from being completely formed. If the mother of the baby does not consume proper calcium, calcium will be stripped from the mothers bones.

4: Week 4 By week 4 the baby begins to look more like a baby instead of a mass of cells. The earliest forms of the external ear, larynx, and eye lens become present. Tiny bumps that will become the limbs form and the brain undergoes changes to regulate heart rate, blood circulation, and other functions.

5: Week 5 By week 5, the baby resembles a small sea creature. The spinal cord becomes more visible and forms an almost tail like structure; the limbs become flipper-like structures. The liver, pancreas, lungs, stomach, and nasal pits begin to form.

6: Week 6 By the 6th week, early hand plates and fingers become visible. The neck begins to grow and straighten out so that the baby will become more human looking. The spinal cord will recede into the lower back and the baby's tail will begin to disappear.

7: Week 7 During week 7, the eyes and ear pits become clearly defined. The baby's miniature bones begin to harden and ossify. The legs become complete with knees and the beginning of toes. Elbows begin to form, as well as teeth in the gums. Intestines begin to develop in the umbilical cord.

8: Week 8 By the 8th week of pregnancy, the baby becomes one inch long. Toes and fingers develop as well as webbing that takes up the space between them. Lower limb bones begin to ossify as well. The tongue begins to develop in the mouth.

9: Month 3: The Ending of First Trimester By the month 3, the neck straightens out, and the chin lifts off of the face. The baby begins to inhale amniotic fluid to prepare its respiratory system. The excretory system becomes fully functional and starts building up a black waste that will become the baby's first execretement.

10: Month 4 By month 4 of pregnancy, the baby's head begins to become proportional to the rest of its body. The baby becomes strong and large enough so that its kicks can be felt faintly by the mother. By this time period the baby is 4.5 inches long.

11: Month 5 By month 5 fingernails become fully formed. The gallbladder becomes fully functional along with other parts of the digestive system. Eyebrows and eyelashes begin to form at 5 months.

12: Month 6 By month 6 of pregnancy, the soft lanugo hairs begin to disappear. Real hair and toenails form replace lanugo. By month 6, bones become fully ossified.

13: Month 7 By month 7 many of the body's features are functional. The baby's sense of taste becomes fully functional. The baby can now move its eyes in its sockets and may be able to follow a light. The baby can distinguish real sounds and voices while in the womb.

14: Month 8 By now the nails of the baby are now long enough to reach the tips of its fingers. Fat accumulation plumps up the arms and legs. The baby can open and close its eyes while awake and while asleep respectively.

15: Month 9: The Final Stretch By the final month of pregnancy, the baby reaches its final birth position. The baby's wrinkled skin becomes soft and smooth. The baby average weighs about 7.5 pounds at birth.

16: The Baby is Born! | Rajeev Rajagopalan at birth.

17: Baby Development: 0-3 Months Babies begin to develop communication parents but will not make direct eye contact their parents but will not make direct eye contact. Babies will move their arms around energetically in order to support muscle development. The babies eyesight beings to tune, as the baby cannot focus more than 20-30 cm.

18: Baby Development: 3-6 Months The babies’ hearing improves and he can now follow sounds and turn towards them. The babies’ communication skills improve and they begin to make “ah” or “oh” sounds which further develop into “goo” and “ga” type sounds. More nerves in the tongue give the baby a desire to test items they find.

19: Baby Development: 6-9 Months The baby's muscular system further develops and he can now sit on his own without any support. The baby's fine motor skills further develop and he can now reach out for small toys and examine them with interest. The baby's communication skills further develop and the baby can now sing a few notes from nursery rhymes.

20: Baby Development: : 9-12 Months The muscular system further develops and the baby can now crawl or begin to walk. The baby’s communication further develops and he can now wave goodbye, nod or shake his head, and can even recognize their own name. The baby's communication skills further develop and the baby can now understand its own name and can even understand the word no.

21: Baby Development: 12-15 Months The baby's muscular system will develop even further and he can now begin to walk on his own. The baby can now speak several nonsense words and can fluctuate voice pitches as if talking in a real conversation. The baby's brain further develops and he can now come to people when called by name and can understand more of what he hears.

22: Baby Development: 15-18 Months The baby can now walk on their own and can climb up stairs with assistance. The baby's fine motor skills with develop even further and he can now play with toy blocks and color with crayons. The baby's language skills will further develop and the baby can now point to pictures of simple words and can put together very simple word combinations.

23: Child Development: Ages1-4 By 2 years the baby can now understand and speak hundreds of words but may need adults to translate what they say. Childrens’ emotional skills further develop and they now enjoy playing with other children but may need the assistance of adults to prevent bad behavior. At 3, children can initiate conversation and can now speak with more well refined grammar.

24: Child Development: Ages 4-7 4 year olds build their knowledge of written language. Kids’ math skills begin to develop and use logical reasoning to solve everyday problems. Children at 6 now have longer attention spans and can focus more easily.

25: Child Development: Ages 7-10 The language skills of a 7 year old reflect that of increasing instruction in literacy. Childrens' mathematical skills further develop and they an now recognize a variety of patterns and sequences.

26: Tween Development: Ages 10-13 Puberty begins to take place and result in physical and emotional changes for both boys and girls. Girls typically experience puberty before boys and will experience widening of the hips and breast growth as well as periods. Boys will experience a deepening of the voice, muscular development, height gain, and penis growth.

27: Teen Development: Ages 13-16 Teenagers will experience increased hormone levels and this may result in emotional fluctuations. Increased hormone levels may lead to acne and the development of facial hair for boys. Many teenagers will experience social changes and unlike before where the mostly had friends of the same sex, teenagers begin to make friendships between both sexes.

28: Teen Development: Ages 16-19 By the late teen years most teenagers have finished growing and have well defined facial features. By now most teenagers have an increased sex drive and the probability of sexual activity has gone up. Many teenagers will use their education experience to decide upon their futures.

29: Adults Development: Ages 20-30 Between the age of 20 and 30 adults develop the need for intimate relationships and will begin to ask existential questions. Adults’ social skills take a meaningful purpose as adults search for deeper friendships and begin to look for a partner in life. Adults will desire respect from co-workers and friends and will also desire to seek out spiritual information. Adults will also develop leadership skills that will become evident while working with other adults. Adults will experience their peak in physical performance at this age.

30: Adult Development: Ages 30-40 Most adults in their 30’s begin to gain weight and some will even lose a half inch of their height. Loss of vision may take place and many adults will need to get glasses. At this stage in life, people become less creative and in certain cases may begin to experience slight memory loss. People at this stage in life learn to appreciate what they have and typically live healthier lifestyles.

31: Adult Development: Ages 40-50 During middle age, many adults lose the elasticity of their skin and begin to develop gray hair. Physical fitness usually declines during this time period and it is not uncommon for adults of this age to gain weight. Chances of miscarriage and giving birth to a baby with down syndrome increase for women of this age.

32: Adult Development: Ages 50-60 At this age many adults will have undergone a mid life crisis and may posses new view and opinions on different subjects. Men may experience sexual dysfunctions such as erectile dysfunction and women will experience menopause. Previous substance abuse could have fatal consequences at this age and many adults at this age have a new outlook on health including the desire to receive cancer testing.

33: Elderly Development: 60-70 Memory, speed, and the ability to multi task all decline at this time period. Fine motor skills decrease as hearing and vision also decline. Capabilities of decision making, communication, and mood control all go into decline.

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  • By: rajeev r.
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