1. Objective 3.02 Prenatal Developmen t
PCD
Pre= _______
Natal=______
Objective 3.02
Prenatal Developmen t

2. TERMS Egg (ovum) Uterus – Fallopian Tube Ovary Cervix Vagina
female cell needed for reproduction
Uterus –
Fallopian Tube
Ovary
Cervix
Vagina

3. Fallopian Tube
Pair of tubes connecting the egg from the ovary to the uterus.

4. Ovulation
Once a month a woman’s egg is released from the ovaries

5. Hormones
Chemicals in the body that cause changes

6. Uterus
Organ in a woman’s body where a baby develops during pregnancy.

7. TERMS Sperm Testicle- male organ where sperm are produced
male cell needed for reproduction
Testicle- male organ where sperm are produced
Vas Deferenes – tube that connects the Testicles to the Urethra
Urethra – tube that allows urine and semen to be released
Ejaculation – the release of semen
Semen – a mixture of sperm and other bodily fluids

8. TERMS
Conception (fertilization)-the union of an ovum and sperm, resulting in the beginning of a pregnancy

9. What happens during conception?
#1 Sperm swim through the cervix, through the uterus, into the Fallopian tubes.

10. What happens during conception?
#2 If Egg present, sperm crowd around it and try to break through the surface.

11. What happens during conception?
Only one sperm is successful.

12. What happens during conception?
Fertilization ONLY OCCURS IN THE FALLOPIAN TUBES

13. What happens during conception?
Once inside sperm seals out remaining sperm, which eventually die.

14. What happens during conception?
Fertilized egg, travels down the fallopian tube into uterus and attaches to the wall of the uterus/IMPLANTATION!

15. Let’s SEE Conception for ourselves!!

16. Implantation
Process of attachment of the embryo to the maternal uterine wall.

17. Blastocyst
A hollow ball of cells from the fertilized egg that implants itself into the uterus lining

18. Amniotic Sac
“Bag” surrounding baby in uterus that holds amniotic fluid

19. Amniotic Fluid
Liquid that surrounds and protects the developing baby in the uterus during pregnancy
“My water broke.” is a term women use.
It’s your amniotic sac that broke and the amniotic fluid comes out.

20. Umbilical Cord
Long tube that connects the placenta to the developing baby during pregnancy; carries food and oxygen to the baby

21. Placenta Tissue in the uterus of a pregnant woman
rich in blood vessels
transports food and oxygen from mom to baby
Transports waste from baby to mom

22. Full Term
Child carried the entire nine months of pregnancy.

23. Prenatal Terms Quickening Lightening 4-5th month
When mother feels that baby move
Lightening
Baby drops into pelvic area before birth

24. Order of Development
A baby’s development is grouped into three stages:
Zygote
Embryo
Fetus.

25. 1st Stage: Zygote/Fertilized Egg
Conception-2 weeks of pregnancy
fertilized egg and implantation
Travels down fallopian tube
Attaches itself to uterus
Grows by cell division
2 weeks, size of pinhead

26. Zygote

27. 2nd Stage: Embryo http://www.exploratorium.edu/exhibits/embryo/embryo.html#
3-8 weeks
1st-Mass of cells develop into all major systems of the body
2nd-Sac filled with fluid forms around embryo
3rd-Placenta
4th-Umbilical Cord

28. Embryo

29. The Stages of Zygote & Embryo Division
multiply

30. Let’s take a closer look!!!

31. 3rd Stage: Fetus Final Stage
2nd-9th Month
1st time child is called fetus
Human-like features
Fetal movement
4th and/or 5th month
Labor occurs
Baby gradually moves out of the uterus into the vagina to be born

32. Fetus

33. Fetus

34. Trimester 3 month period 3 trimesters = full term pregnancy
1st trimester – months 1, 2, 3
2nd trimester – months 4, 5, 6
3rd trimester – months 7, 8, 9

35. “Trimester Graphic Organizer”

36. 1st Trimester
r.com/fetal- development-images- 3-weeks

37. First Trimester - First Month
Baby
Size of a pin head at two weeks
Egg attached to lining of the uterus.
Called Zygote until it attaches then becomes an embryo
The heart, which is no larger than a poppy seed, is beating.
Internal organs and circulatory system begin to form
Small bumps indicate the beginning of arms and legs
Placenta (afterbirth) begins to develop
Mother
Missed period
Enlarged breasts
Frequent urination

39. First Month

40. First Trimester Two Months
Baby
Zygote 1/4 inch long and has distinct, slightly webbed fingers.
Face, eyes, ears, and limb develop.
Bones begin to form
8 weeks, changes from embryo to a fetus
Will remain fetus until birth
Veins are clearly visible.
The heart has divided into right and left chambers.
Penis begins to appear in boys
Baby is moving
although the mother can not yet feel movement
Mother
Swelling of breasts
Increased urination due to pressure on bladder
Nausea
“Morning sickness”

41. Inside Pregnancy: Boy or Girl?
Video:1:54
Inside Pregnancy: Boy or Girl?

42. Two Months

43. First Trimester Three Months
Mother
Breasts firmer/fuller, may ache
Nausea
Fatique
Frequent urination may continue
Abdomen slightly larger
Wt. gain may total 2-4 lbs.
Baby
1 in. long as mth. Begins
Nostrils, mouth, lips, teeth buds, eyelids form
Fingers and toes almost developed
All organs present, although immature
Begun swallowing and kicking
Heart rate heard at 10 weeks with a special instrument called a Doppler

44. http://www. babycenter. com/2_inside-pregnancy-weeks-10-to-14_10308108

45. 1st Trimester OVERVIEW Zygote stage – last about 2 weeks
Do not copy
Zygote stage – last about 2 weeks
Fertilized attaches to thick lining of uterus
Cell division begins
Embryo stage-3 to 8 weeks after conception
Embryo becomes firmly attached to uterus
All major organ systems form
Placenta, amniotic fluid, and umbilical cord formed by end of this stage
At 4 weeks - 1/6 of an inch long
Backbone, spinal column and nervous system are forming

46. Second Trimester Four Months
Baby
3 in long
Weighs 1 oz. as mth. Begins
Can suck thumb, swallow, hiccup, and move around
Facial features become clearer
Covered with a layer of thick, downy hair called lanugo.
Heartbeat can be heard clearly
This is when you may feel your baby's first kick.
Tooth buds are developing
not able to survive outside the mother's body
Sex is identifiable
Mother
Appetite increases
Most unpleasantness of early pregnancy, such as morning sickness, usually gone
Abdomen cont. to grow slowly

47. http://www. babycenter. com/2_inside-pregnancy-weeks-15-to-20_10308111

48. 4 months

49. Second Trimester Five Months
Mother
Enlarged abdomen becomes apparent
Slight fetal movements
increased size of abdominal area may begin to affect posture
breasts may begin to leak a yellowish fluid called colostrum
Baby
6 ½-7 inches long
weighs almost 4-5 oz.
Hair, eyelashes, and eyebrows appear
Teeth cont. to develop
Organs are maturing
Becomes more active
Protective coating called vernix caseosa begins to form on baby's skin.
ver·nix ca·se·o·sa

51. Second Trimester Six Months
Baby
8-10 in.
8-12 oz.
Eyebrows and eyelids are visible.
Eyelids begin to part and eyes open sometimes for short periods of time
The baby's lungs are filled with amniotic fluid.
started breathing motions.
If the mother talks or sings, the baby can hear.
Fat deposits under skin, but fetus appears wrinkled
Baby is able to hiccup
Mother
Fetal movements sensed as strong kicks, thumps, and bumps (may be visible)
Wt. gain by the beginning of this mth. may total lbs.

52. http://www. babycenter. com/2_inside-pregnancy-weeks-21-to-27_10312242

53. 6 Months

54. 2nd Trimester OVERVIEW Stage of the fetus Baby recognizable as human
Do not copy
Stage of the fetus
Baby recognizable as human
All internal organs present, but not functioning
Quickening: 4th–5th month fetal movement felt
14 weeks muscles lengthen and become organized
16 weeks Can grasp with hands, kick and somersault
20 weeks
Can hear and recognize mothers voice
Fingernails and fingerprint appear
Sex organs are visible
24 weeks:
Covered with a fine hair
Protected by a waxy substance called vernix
Breaths in amniotic fluid

55. Third Trimester Seven Months
Baby
14-16 in. long
1 ½ pounds
Periods of activity followed by periods of rest and quiet
Body is well-formed
Fingernails cover his fingertips
Taste buds have developed
If born at this time, baby will be considered a premature baby and require special care
Mother
Increased size may affect posture

57. Third Trimester Eight Months
Baby
14-16 in. long
Weighs 2 1/2 and 3 pounds
Gaining about half a pound per week
Layers of fat are piling on
Moves into head-down position in preparation for birth
May react to loud noises with reflex jerking action
Tremendous brain growth
Most body organs are now developed with the exception of the lungs
Mother
Discomfort may result from increased size of abdominal area
backache=fatique
Leg cramps=shortness of breath
Fetal kicks may disturb the mother’s rest
At beginning of mth., wt. gain totals lbs

59. 8 months

60. Third Trimester Nine Months
Baby
17-18 in. long
Wt. 5-6 lbs
Skin becomes smooth as fat deposits cont.
Movements decrease as the fetus has less room to move around
Acquires antibodies to fight disease from the mother’s blood
Moves into pelvis, ready for birth
can survive outside the mother's body
The lungs mature
Mother
“Lightening” felt as the fetus drops into the pelvis and decreases pressure on mother’s organs; breathing becomes easier
Other discomforts may cont.
Total wt. gain lbs. is typical
False labor pains may be experienced

62. 3rd Trimester OVERVIEW Fetus Last 3 months of pregnancy
Do not copy
Fetus
Last 3 months of pregnancy
Capable of living outside the womb
LIGHTENING occurs – baby shifts downward and feels more comfortable in upper abdomen
Sleeps 90-95% of the day
At birth, placenta detaches from uterus as lifeline and child takes first breath on their own

63. Ultrasound Exam Video 3:34

64. Partner up!
You will be put into groups to complete the next assignments.

65. “Name That Month” Directions: Class will be arranged into nine groups.
Each group will receive one case study strip.
Each group will read the case study (table tent) together to decide which month of the pregnancy is described.
Be ready to share your response.

66. Case Study #1
The zygote is the size of a pin head. The egg is attached to the lining of the uterus. The zygote is attached to the lining of the uterus and becomes an embryo. The mother has missed her menstrual cycle, her breasts have enlarged, and she has to urinate frequently.
What month is this?
Month 1

67. Case Study #2
The fetus is inches long and weighs 5-6 pounds. The fetus continues gaining weight until the week before birth. The skin becomes smooth as fat deposits continue to develop. Movement decreases as the fetus has less room to move around. The fetus acquires antibodies to fight disease from the mother’s blood and moves into the pelvis, ready for birth. The mother feels lightening as the fetus drops into the pelvis; breathing becomes easier. Other discomforts continue, and a total weight gain of pounds is typical. False labor pains called Braxton Hicks contractions may be experienced.
What month is this?
Month 9

68. Case Study #3
The embryo is ¼ inch long and has developed face, eyes, ears, and limbs. The bones have begun to form. The embryo changes to a fetus and remains a fetus until birth. The mother has swelling of breasts and increased urination due to pressure on the bladder. She is not having nausea or morning sickness.
What month is this?
Month 2

69. Case Study #4
The fetus is 3 inches long and weighs one ounce. The fetus can suck its thumb, swallow, hiccup, and move around. The facial features become clearer. The mother’s abdomen continues to grow slowly. Most discomforts of early pregnancy, such as morning sickness, usually are gone. Appetite increases.
What month is it?
Month 4

70. Case Study #5
The fetus is about 8-10 inches long and weighs about 8-12 ounces. The mother senses fetal movement as strong kicks, thumps, and bumps---some may be visible. The mother gains as much as pounds during this month.
What month is it?
Month 6

71. Case Study #6
The fetus is about inches long, weighs about 2 ½-3 pounds as the month begins. The weight gain continues rapidly. The fetus may react to loud noises with a reflex jerking action. The fetus moves into a head-down position. The mother may show signs of discomfort from increased size. She might show signs of backache and fatigue along with leg cramps and shortness of breath. The fetal kicks may disturb the mother’s rest. At the beginning of the month, weight gain totals about pounds.
What month is this?
Month 8

72. Case Study #7
The fetus is about one inch long. Nostrils, mouth, lips, teeth buds and eyelids form. Fingers and toes also develop. All the organs are present, although they are immature. The mother’s breasts become firm and full, and they may ache. Nausea, fatigue and frequent urination are still present. The abdomen becomes slightly larger. The uterus is about the size of an orange. The mother has gained 2-4 pounds.
What month is this?
Month 3

73. Case Study #8
The size of the fetus is inches long and weighs about 1½ -2 pounds as the month begins. The fetus experiences periods of rest and quiet. The mother’s increased size may affect her posture.
What month is this?
Month 7

74. Case Study #9
The fetus is about 6 ½-7 inches long and weighs about 4-5 ounces. Hair, eyelashes, and eyebrows appear and teeth continue to develop. The organs are maturing and the fetus is becoming more active. The mother’s abdomen has become large enough to let others know she is pregnant. Slight fetal movements are felt. Increased size has begun to affect her posture.
What month is this? 
Month 5

75. Fetal Development Growth Chart
Materials:
Construction paper
Ruler
Scale
Colored Pencils
PowerPoint Notes
Directions:
Use materials to create a size chart of the growth of the fetus each month
You should chart it on paper, month by month and beside each month measure the size.
Look for teachers example.

76. Fun Way to Remember Directions: Materials:
Use teacher’s example to create a fun way to remember the 9 months of pregnancy for Baby and Mother.
Materials:
Index cards
Colored pencils
Teachers Mnemonic
I will post on document camera

77. 3.02 Fetal Development Test Review
Directions:
Complete MiTiReLa 3.02 Learning Mode.
Record score after clicking daily progress.
Teacher will need to see and sign off on your MiTiReLa paper.

78. Let’s see what you know! Directions:
Close eyes and put heads down on desks.
I will describe each month of pregnancy.
You will hold up the # of fingers corresponding to the month of pregnancy that is described.
Teacher will rotate around the room and touch student’s hand if incorrect.
If hand is touched you will know you need to try again!
If hand is not touched, leaved your fingers up until the next description is called out.
Test may consists of 9-18 questions. 

89. Guided practice
You will pick a number 1-9 out of the cup. That # will represent a month of pregnancy.
After you have chosen a month, you will find an object in the classroom that would represent the size of the embryo and fetus at each stage of development.
After objects are collected, display and give a description of the growth represented by each object.

90. Independent Practice
You will be grouped with a partner to decorate a bulletin board according to the month of pregnancy you choose.
Bulletin Boards must be neat, attractive, easy to read-- words must be big enough to read, no grammatical errors
Your bulletin board must provide the following:
Pictures points
Grammatical Errors points
Labels points
Content (info discussed in class) 40 points
Gather info from notes, textbook, Internet
Creative points
TOTAL Points