Transcript Week 4 - Kids

Human Development During Pregnancy
By Mrs. Fucoloro’s 7th Grade Science Class
St. Clement School
St. Louis, MO
2005-2006
The First
Trimester of
Pregnancy
By: Beth, Olivia,
Jen, Abby,
Catherine,
Kate, Sarah,
Kate, Tim,
Olivia, Ali,
Taylor, Mary,
and Allie
Features
Week 4: The placenta develops
Week 6: Umbilical cord
develops, first heart beat begins,
buds for arms and legs form
Week 8: elbows and feet begin
to grow, teeth develop under
gums
Features, continued
Week 9: Bones and cartilage begin to develop, the
fingers are short and webbed
Week 10: It’s moving!!! Most joints have been
formed
Week 11: Now considered a fetus, blood begins to
circulate between the baby and the uterus, placenta
starts to function
Week 12: Fingers and toes separate, hair and nails
begin to grow, genitals take on gender
characteristics
Organs
• Most of the organs like
kidneys, liver, pancreas,
bladder, intestines, bronchi,
and skin have formed by the
end of the first trimester
How Long?
• Week 7: baby is 1/3 of an
inch long or the size of a
grain of rice
• Week 12: baby is 2 inches
long
• At the end of the first
trimester the baby will weigh
approximately half of a pound
Senses
• All sense organ
have begun to form,
but it will be many
weeks before they
are completed to the
point where the
baby will be able to
use them
Extra Info
• Week 5: embryo has three layers: the
ectoderm, endoderm, and the mesoderm
and the skin remains transparent
• Week 11: blood will begin to circulate in
between the baby and the uterus
• Week 12: kidneys begin to form and excrete
urine and the muscles in the intestinal wall
practice digesting food
• During the first trimester the brain and head
grow rapidly. “Ridges demarcate the three
sections of the brain.” –www.
Visibleembryo.com
• Week 6: baby’s first heart beat is recorded
TIMELINE
Works Cited
•
•
•
•
“pregnancy week-by-week guide.” 98-06. StorkNet family. 3 April 2006.
http://www.pregnancyguideonline.com
“The visible embryo” not given. National Institute of Health. 3 April 2006
http://www.visembryo.com/baby/index.html
“Fetal Development:How your baby grows.” babycenter.com 2006.Baby Center
LLC.30 March 2006.
http://www.babycenter.com/fetaldevelopment/
“First Trimester”. Pregnancy week by-week guide. Doerr Consulting/Stork Net Family.
30 March 2006.
http://www.pregnancyguideonline.com/
Sean, Drew, Nick, Eric, Brian, Patrick, Mary, Molly, William,
Brendan, Rebecca, Claire and Colleen
Features
• The following begin to
develop: head-face,
eyes, retina, eyelids
and eyebrows, ears,
bones in the middle
ear, nostrils
• vocal cords,
intestines,
pancreases, arms,
hands, fingernails,
hair, legs, toenails,
fat, placenta, brain,
muscles.
Organs
• Week 17: Heart may be
pumping up to 25 quarts
of blood each day
• Week 18: Prostate glands
grow in boys.
• Week 20: Uterus starts to
develop in baby girls
• Week 21: Heart
strengthens
Weight and Inches
• 4 months: the baby’s
length is 4.5 inches
• 5 months: the baby’s
length is 10 inches.
• 6 months: the baby’s
length is 12 inches
and weighs more than
a 1 pound
Developed Senses
• Eyes and ears
develop and move to
their proper position
throughout the
trimester
• Week 26: brain waves
for sight and sound
• Week 27: eyes start
opening and retinas
start growing
Extra Info!
• Baby’s bones begin to
harden
• Baby is moving a lot but
the mother cannot always
feel these movements
• The baby’s head is half
the size of the body
• Fine hair is all over the
baby’s body
• Baby’s eyes are large
and opened
TIMELINE
Work cited
Web
“Pregnancy week-by-week.” Doree Consulting
Baby Center 4/3/2006, unknown
http://www.pregnancyguideonline.com/
Author unknown Visual Embryo “Visual Embryo Timeline”
4/3/2006 unknown
http://www.visembryo.com/baby/index.html
Baby center LLC. StorkNet “Fetal Development: How Baby Grows.”
4/3/2006, unknown
http://www.babycenter.com/fetaldevelopment/
Images
http://www.pregnancy.org/pregnancy/fetaldevelopment2.php
http://nycpastor.typepad.com/photos/uncategorized/zaizaismile.jpg
http://pregnancy.about.com/library/ultrasounds/us0016c.jpg
By: Michael, Justin, Jamey, Alex, Kevin,
Tyler, Matthew, Chris, Maggie, David,
Mary Margaret, Ellie, Anthony, Katie and
Kevin
Body Features
• The eyebrows and
eyelashes finish forming
and eyes function
• Hair on head continues to
grow
• Leg actually starts to look
like a leg, a little bony
• More body fat is collecting
around bones
• The arms are small but
the bones are growing
Organs
• During the third trimester of
pregnancy almost all organs
have formed
• Only the lungs need to be
developed more because if
the baby was born now it
would have a hard time
breathing
• By then end of the third
trimester the baby is ready to
be born because all
essential organs are in place
lifedynamics.com
Length & Weight
• The average
weight from weeks
28-40 is 2 to 7.5 lbs.
• The average
length from weeks
28-40 is 14.8 to 20
inches
SENSES
• By week 32, the
baby is up to 4
pounds and all
five sense are
functional
• In 2005 nearly 500,000
babies born before the
3 trimester did not gain
all their normal
functions
• Albert Einstein was
born in the beginning
of the 3 trimester
• 82% of twins weigh
less than 6 pounds
Timeline
Bibliography
• 1. “Baby Center.” 1997-2006. “What your
baby
looks like at seven months.” 4/2/06
www.babycenter.com/fedaldevelopment/
• 2. “Visible Embryo.” no copy right date.
Visible Embryo. 4/2/06.
www.visembryo.com/baby/index.html
• 3.“Storknet’s.” 1998-2006. Pregnancy Weekby-Week Guide. 4/2/06.
www.pregnancyguideonline.com
• 4. “Show Me News.” no copy right date.
Extra Information.
www.showmenews.com/2005/babylove/20
05.