Development of an Unborn Baby

1. Development of an Unborn Baby Immanuel Lutheran 5th & 6th Grades April-May 2007

2. Days 1-9 Sperm joins with the ovum (egg) . Forming one cell smaller than a grain of salt. The new life has inherited 23 chromosomes from each parent equal to 46 chromosomes. • The fertilized egg travels down the fallopian tube into the uterus. There the lining has been prepared for implantation.

3. Days5-9 • During this time the fertilized egg implants itself in the uterus. • Then begins to draw nourishment.

4. Week Two • The fertilized egg travels to the womb. • If the fertilized egg gets stuck on the way to the womb the baby will have to be aborted • otherwise the mom and the baby will die. • The backbone and muscles start to form (http://www.deathroe.com/Baby%5FDevelopment/)

5. Week 4 • When a embryo is developing at week four the heart begins to beat and the backbone and muscles are forming. • The babies arms, legs, eyes, and ears begin to appear.

6. WEEKS 5-6 • Five fingers can be seen on the hand • Has darkened pigments for eyes • Brain waves can be detected • Muscles and vital organs are formed

7. Week 7 • The embryo begins to move. The mouth starts to form. The embryo is about 7-9 mm long. The baby goes through three sets of kidneys.

8. Week 8 • The embryo is now called a fetus. • Everything is present that will be found in a fully developed adult. • It keeps growing and develops muscles. • Its heart has been beating for more than a month.

9. Weeks 9-11 Week 9- Fingerprints are already evident in the skin The Zygote will curve its fingers around An object placed in the palm of its hand. Week 10-The uterus has now doubled in size. The fetus can squint, swallow and wrinkle its forehead. Week 11-At this time, the fetus is about 2 in. long. The face has assumed a baby’s profile and movements are becoming more coordinated.

10. Weeks 12-13 • The fetus sleeps, awakens,and exercises its muscles energetically turning its head,opening and closing its mouth, and curling its toes. • The palm, when is stroked, it will make a tight fist • The fetus breathes amniotic fluid to help its respiratory system. • You can tell if it is a boy or girl.

11. Month 4 • At the end of month 4 the fetus is 8-10 in. ,and weighs a half lb. or more. • The umbilical cord transports 300 quarts of fluids per day and completes a round-trip of fluids every 30 seconds.

12. The 5th Month • Organs mature • Sleeps and is awake on a regular pattern • Arm, legs, and mouth can be seen moving on ultrasounds • 8-12 inches long, ½ to 1 pound in weight • Can be able to tell if baby is boy or girl on ultrasound

13. The 6th Month • The baby is over a foot long and weighs close to 2 pounds. • At this time the baby’s eyelids open and close. • Baby moves and is more active • Is able to suck thumbs

14. The Sixth Month • The fetus in this stage is able to sweat and produce oils. • The skin at this stage still has vulnerable skin ,but could still live if birthed.

15. Month 7 • The baby now uses four senses: vision, hearing, taste and touch. • He can recognize his mother’s voice.

16. Month 8 • The skin begins to thicken, with a layer of fat stored underneath for insulation and nourishment. • The baby absorbs a gallon of amniotic fluid per day. The fluid is completely replaced every three hours.

17. Month 9 • Toward the end of this month, the baby is ready for birth. • Most babies are born between 266 and 294 days. • The infant normally weighs 6 to 9 pounds. • He is fully capable of life outside of the womb.