Prenatal Development (before birth). Prenatal Development The process of growth and development...
If you can't read please download the document
Prenatal Development (before birth). Prenatal Development The process of growth and development within the womb, in which a single-cell zygote (the cell
Prenatal Development The process of growth and development
within the womb, in which a single-cell zygote (the cell formed by
the combination of a sperm and an egg) becomes an embryo, a fetus,
and then a baby.
Slide 3
Conception AKA: fertilization When the ovum and sperm unite
Occurs in the fallopian tube 2-3 days after egg is released
Slide 4
Make Room For Baby, Interactive Click on image for video
Slide 5
Human Gestation 37-42 weeks 266 days from conception Trimesters
Each 3-Month Period of Pregnancy: 1 st Trimester Months 1,2,3 2 nd
Trimester Months 4,5,6 3 rd Trimester Months 7,8,9
Slide 6
Zygote The 1 st Stage of Development (The Germinal Stage)
Slide 7
Zygote The unborn for the first 2 weeks; size of a pinhead
Travels down fallopian tube & attaches to uterus
(implantation)
Slide 8
Slide 9
Prenatal Models of Embryo and Fetus
Slide 10
Museum of Science & Industry A collection of 24 human
embryos and fetuses 28 days to 38 weeks Originally donated to the
Museum in 1939 Collected in the1930s by Dr. Helen Button All failed
to survive because of accidents or natural causes Dr. Button
obtained the parents permission to use these specimens as teaching
tools.
Slide 11
Embryo The 2 nd Stage of Development
Slide 12
Embryo The unborn from weeks 3-8 By the end of the 8 th week,
all organs are present
Slide 13
Changes During Embryo Period Amniotic Sac forms & fills
with fluid Placenta develops Umbilical Cord develops
Slide 14
Amniotic Sac Forms around the embryo & fills with amniotic
fluid
Slide 15
Amniotic Fluid Protects and cushions the unborn Water, urine,
skin cells Clear to light yellow
Slide 16
Placenta Develops Rich in blood vessels; Provides food and
oxygen Attached to the uterus
Slide 17
Umbilical Cord Connects the embryo to the placenta Food and
oxygen travel in Waste travels out
Slide 18
Fetus The 3 rd Stage of Development
Slide 19
The Fetal Stage - Fetus The unborn from the 8 th week until
birth Gains weight and acquires disease-fighting immunities
Slide 20
Quickening 4 th -5 th Month - Movements of the fetus can be
felt by the mother
Slide 21
Fetal Position Fetus curls up because there is no more room to
stretch out
Slide 22
Lightening 9 th month - Fetus shifts down toward the birth
canal The mother feels more comfortable in the upper abdomen
Slide 23
Miscarriage The developing embryo or fetus dies before 20 weeks
of pregnancy As many as 15% of all recognized pregnancies end in
miscarriage
Slide 24
Stillbirth The developing fetus dies after 20 weeks of
pregnancy About 2% of all pregnancies end in a stillbirth
Slide 25
Slide 26
How Big is the Baby Week by Week Size comparison Click on image
for link
Slide 27
Development Week by Week Video Clips Weeks 1-9 Weeks 10-14
Weeks 15-20 Weeks 21-27 Weeks 28-37 Labor and Birth
Slide 28
Prenatal Assignment: Prenatal Development Posters Directions:
Individually, you will be assigned a developmental month. You are
to research information and then create an informational poster for
that month. You must have the following: Size of baby (length &
weight & comparison) At least 5 facts about the babys
development At least 5 facts about what is changing with the mother
At least 3 relevant graphics/pictures Choose FACTS that would be
MOST helpful for a new mother to learn about the changes she will
be experiencing as well as how her baby is developing