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Pregnancy Conception Through Birth Click on the house to go to the Home Page!

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Presentation on theme: "Pregnancy Conception Through Birth Click on the house to go to the Home Page!"— Presentation transcript:

1 Pregnancy Conception Through Birth Click on the house to go to the Home Page!

2 Pregnancy First Trimester First Trimester (Conception to 13 weeks) (Conception to 13 weeks) First Trimester First Trimester (Conception to 13 weeks) (Conception to 13 weeks) Second Trimester Second Trimester (14 to 27 weeks) (14 to 27 weeks) Second Trimester Second Trimester (14 to 27 weeks) (14 to 27 weeks) Third Trimester Third Trimester (28 weeks to Birth) (28 weeks to Birth) Third Trimester Third Trimester (28 weeks to Birth) (28 weeks to Birth) Labor and Birth Labor and Birth

3 First Trimester Conception A single sperm and the woman’s egg join together and their DNA is combined to form a developing human called a zygote (or fertilized egg.) A single sperm and the woman’s egg join together and their DNA is combined to form a developing human called a zygote (or fertilized egg.) Next Click on the arrow to go to the next page!

4 First Trimester Weeks 1 and 2 The zygote develops the placenta, a structure through which the developing baby receives nutrients and gets rid of wastes. The zygote develops the placenta, a structure through which the developing baby receives nutrients and gets rid of wastes. Next

5 First Trimester Weeks 1 and 2 (cont.) The zygote reaches the uterus at the end of week one and attaches itself to the wall of the uterus (implantation), triggering hormones that prevent the woman from menstruating. The zygote reaches the uterus at the end of week one and attaches itself to the wall of the uterus (implantation), triggering hormones that prevent the woman from menstruating. Next

6 First Trimester Weeks 1 and 2 (cont.) By the end of week 2, the zygote is implanted and is less than 1 millimeter across. By the end of week 2, the zygote is implanted and is less than 1 millimeter across. Next

7 First Trimester 3 – 8 weeks The implanted zygote is now known as an embryo. The implanted zygote is now known as an embryo. The embryo is growing in a fluid filled sac called the amnion that cushions it and regulates its temperature. The embryo is growing in a fluid filled sac called the amnion that cushions it and regulates its temperature. Next

8 First Trimester 3 – 8 weeks (cont.) The umbilical cord is now connecting the embryo to the placenta and allows for the exchange of nutrients, wastes, etc. with the mother. The umbilical cord is now connecting the embryo to the placenta and allows for the exchange of nutrients, wastes, etc. with the mother. During these weeks, body parts and organs begin to develop and one can see the embryo’s eyes, jaw, arms, and legs. The heart also begins to beat. During these weeks, body parts and organs begin to develop and one can see the embryo’s eyes, jaw, arms, and legs. The heart also begins to beat. Next

9 First Trimester 3 – 8 weeks (cont.) There are three layers to the embryo: There are three layers to the embryo: – The outer layer becomes hair, skin, and the nervous system – The middle layer becomes muscles, bones, and the circulatory system – The inner layer becomes the digestive system and the lungs The embryo grows from 2 millimeters to about 1 inch in length. The embryo grows from 2 millimeters to about 1 inch in length. Next

10 First Trimester Week 9 At week 9, when cartilage turns to bone, the developing child is now known as a fetus. At week 9, when cartilage turns to bone, the developing child is now known as a fetus. Next

11 First Trimester Week 9 (cont.) The fetus’s brain and spinal cord develop to the point that the fetus now has brain structures and the brain begins to regulate body functions. The fetus’s brain and spinal cord develop to the point that the fetus now has brain structures and the brain begins to regulate body functions. Next

12 First Trimester Week 9 (cont.) Ovaries develop in a female and testes develop in a male. Ovaries develop in a female and testes develop in a male. The fetus weighs only about an ounce. The fetus weighs only about an ounce. Next

13 First Trimester 12 weeks At week 12, the fetus develops either a penis or a vagina At week 12, the fetus develops either a penis or a vagina Fetal Period (9 – 38 weeks) The period of pregnancy when a developing child is called a fetus is marked by rapid growth and functioning of body systems. The period of pregnancy when a developing child is called a fetus is marked by rapid growth and functioning of body systems. The fetus can hear, see, and taste in the womb. The fetus can hear, see, and taste in the womb. Next

14 First Trimester Watch this video to review the developing child’s progress from conception to 13 weeks. Next

15 First Trimester Quiz Question 1 A baby is conceived when a ___ from a man combines with an ___ from a woman. a.DNA; RNA DNA; RNADNA; RNA b.sperm; egg sperm; eggsperm; egg c.zygote; embryo zygote; embryozygote; embryo Click on a, b, or c to answer the question!

16 Question 1 Correct! Correct! A child is conceived when a sperm from a man and an egg from a woman combine! Next

17 Question 1 Incorrect! Remember that we are talking about conception when we say “conceived.” Try again! Try again! Click “Try Again!” to go back to the question!

18 First Trimester Quiz Question 2 A zygote is the … a.term for a developing child from conception to implantation term for a developing child from conception to implantationterm for a developing child from conception to implantation b.term for a developing child after implantation term for a developing child after implantationterm for a developing child after implantation c.term for a developing child once cartilage turns to bone term for a developing child once cartilage turns to boneterm for a developing child once cartilage turns to bone

19 Question 2 Correct! A zygote is the term for a developing child from conception to implantation. Next

20 Question 2 Incorrect! Hint: The zygote period is the first 2 weeks of pregnancy! Try Again! Try Again!

21 First Trimester Quiz Question 3 What is an embryo? a.A part of the woman’s uterus. A part of the woman’s uterus.A part of the woman’s uterus. b.A name for a developing child after implantation. A name for a developing child after implantation.A name for a developing child after implantation. c.An egg that is deformed. An egg that is deformed.An egg that is deformed.

22 Question 3 Correct! An embryo is the name for a developing child after implantation!

23 Question 3 Incorrect! Remember that an embryo is part of pregnancy! Try Again! Try Again!

24 Second Trimester To review: Zygote: 0 – 2 weeks; conception and implantation Zygote: 0 – 2 weeks; conception and implantation Embryo: 3 – 8 weeks; after implantation and before cartilage turns to bone Embryo: 3 – 8 weeks; after implantation and before cartilage turns to bone Fetus: 9 weeks – birth; when cartilage turns to bone until birth Fetus: 9 weeks – birth; when cartilage turns to bone until birth Next

25 Second Trimester 16 weeks The developing child is still called a fetus. The developing child is still called a fetus. The fetus weighs 4 to 8 ounces. The fetus weighs 4 to 8 ounces. The mother can feel its movements. The mother can feel its movements. Next

26 Second Trimester 17 weeks (and beyond) Starting at 17 weeks, the fetus gains about 7 or 8 pounds before birth. Starting at 17 weeks, the fetus gains about 7 or 8 pounds before birth. Next

27 Second Trimester 20 – 24 weeks The developing child’s heart rate changes in response to stress. The developing child’s heart rate changes in response to stress. Eyebrows, eyelashes, and scalp hair form. Eyebrows, eyelashes, and scalp hair form. The developing child begins sucking and swallowing. The developing child begins sucking and swallowing. Next

28 Second Trimester Watch this video to review the developing child’s progress from 14 to 27 weeks. Next

29 Second Trimester Quiz Question 1 A fetus is the name of a developing child during the third stage of pregnancy. a.True True b.False False

30 Question 1 Correct! A fetus is the name for a developing child in the third stage of pregnancy when the child’s cartilage has turned to bone until he or she is born. Next

31 Question 1 Incorrect! A fetus is the name for a developing child in the third stage of pregnancy when the child’s cartilage has turned to bone until he or she is born. Next

32 Second Trimester Quiz Question 2 What stage of development is this developing child in? a.Zygote Zygote b.Embryo Embryo c.Fetus Fetus

33 Question 2 Correct! This is a picture of an embryo!

34 Question 2 Incorrect! This developing child is in a different stage of development! Try Again! Try Again!

35 Third Trimester To review: Zygote: 0 – 2 weeks; conception and implantation Zygote: 0 – 2 weeks; conception and implantation Embryo: 3 – 8 weeks; after implantation and before cartilage turns to bone Embryo: 3 – 8 weeks; after implantation and before cartilage turns to bone Fetus: 9 weeks – birth; when cartilage turns to bone until birth Fetus: 9 weeks – birth; when cartilage turns to bone until birth Next

36 Third Trimester 28 weeks By 28 weeks, most body systems function and the brain specializes. By 28 weeks, most body systems function and the brain specializes. Next

37 Third Trimester 28 weeks (cont.) This is the age of viability, or the stage at which the fetus has a chance of surviving should it be born early. This is the age of viability, or the stage at which the fetus has a chance of surviving should it be born early. – A child born at this age will have trouble breathing as its lungs are not fully developed. – The child will also have trouble regulating body temperature because the baby lacks a layer of fat that develops in the 8 th month.

38 Third Trimester 32 – 36 weeks During the final weeks, there is rapid weight gain. During the final weeks, there is rapid weight gain. The fetus also develops a layer of fat that helps it to regulate its body temperature outside the womb. The fetus also develops a layer of fat that helps it to regulate its body temperature outside the womb. Next

39 Third Trimester 38 weeks At 38 weeks, the fetus is at full term and is ready to be born. At 38 weeks, the fetus is at full term and is ready to be born. Birth usually occurs naturally around this time or it can be induced by doctors. Birth usually occurs naturally around this time or it can be induced by doctors. Next

40 Third Trimester Watch this video to review the developing child’s progress from 28 to 38 weeks. Next

41 Third Trimester Quiz Question 1 What stage of development is this developing child in? a.Fetus Fetus b.Embryo Embryo c.Zygote Zygote

42 Question 1 Correct! This developing child is in the stage of development where he or she is called a fetus! Next

43 Question 1 Incorrect! This child is in a different stage of development! Try Again! Try Again!

44 Third Trimester Quiz Question 2 How long, on average, does a pregnancy last? a.38 weeks 38 weeks38 weeks b.6 months 6 months6 months c.400 days 400 days400 days

45 Question 2 Correct! A pregnancy usually lasts about 38 weeks or about 9 and a half months!

46 Question 2 Incorrect! That number is off, think about the timing we discussed in this module! Try Again! Try Again!

47 Labor and Birth Watch this video to review the developing child’s progress from conception to 38 weeks! Next

48 Labor and Birth There are three stages of labor. There are three stages of labor. The timing of each stage varies greatly from woman to woman and pregnancy to pregnancy. The timing of each stage varies greatly from woman to woman and pregnancy to pregnancy. Next

49 Labor and Birth Stage 1 Lasts approximately 12 – 24 hours Lasts approximately 12 – 24 hours In this stage, the uterus starts to contract. In this stage, the uterus starts to contract. – The contractions start out weak and irregular and gradually become stronger and more rhythmic. – These contractions enlarge the cervix (the opening from the uterus to the vagina) to 10 centimeters. Next

50 Labor and Birth Stage 2 Lasts about an hour Lasts about an hour In this stage, the mother pushes the baby along through the cervix and into the vagina. In this stage, the mother pushes the baby along through the cervix and into the vagina. The baby’s head appears first which is known as crowning, and soon the baby is delivered. The baby’s head appears first which is known as crowning, and soon the baby is delivered. Next

51 Labor and Birth Stage 3 Lasts only minutes Lasts only minutes In this stage, the mother pushes to deliver the placenta. In this stage, the mother pushes to deliver the placenta. Next

52 Labor and Birth Quiz Essay Write a paragraph containing at least four facts about labor. Save this PowerPoint and turn it into your teacher!


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