500 likes | 639 Views
1 st Grade Summer Story. http://www.whattoexpect.com/pregnancy/week-by-week/landing-weeks.aspx. http://www.babycenter.com/. http://www.healthguru.com/. Prenatal Development. From conception to birth…. the 40 week miracle!!. Conception. Ovulation has occurred in the female body.
E N D
1st Grade Summer Story http://www.whattoexpect.com/pregnancy/week-by-week/landing-weeks.aspx http://www.babycenter.com/ http://www.healthguru.com/
Prenatal Development From conception to birth…. the 40 week miracle!!
Conception • Ovulation has occurred in the female body. • Conception occurs when a single sperm fertilizes an egg. • Occurs in the fallopian tube. • Beginning of life! Look Who’s talking
Congratulations! Your Pregnant Online Pregnancy Test Link Signs and Symptoms of Pregnancy
Figuring your due date • Take the first day of your last period • February 7th • Go back 3 months • November 7th • Add 7 days • November 14th • Give or take 2 weeks
Pre-Natal Development • Growth of the baby from conception to birth • 40 weeks, 10 months, 280 days, 3 trimesters. • Very rapid: goes from the size of a pencil dot (one cell) to a 7 ½ pound (200 billion cells) in 9 months. • 4 weeks = poppy seed, 5 weeks = grain of rice, 7 weeks = blueberry, 14 weeks = apple, 15 weeks = orange, 39 weeks = watermelon • If this rate of growth continued past birth, the baby would weigh 160 lbs by its first birthday. Paper people winners
3 Trimesters (about 13 weeks each) • 1st Trimester • focus is on physical development • Define ovum, sperm, conception/fertilization • The greatest time of risk and vulnerability for birth defects to the developing fetus. • 2nd Trimester • Increased organ development • Define Quickening and Lanugo • Physically the easiest on the Mom • 3rdTrimester • Continues to grow and practice using body and bodily functions • Define Vernix and Lightening • Physically the most demanding on Mom
Prenatal Terms Embryo (weeks 3-8) Zygote (week 0-2) Fetus (weeks 9-40) Belly People
Pre-natal Development “House” • Uterus / Womb • The fetus grows inside this.
Placenta (Latin for Cake) • Flat pancake shaped organ with amniotic sac attached to one side and the umbilical cord attached to the other. • filters nutrients and oxygen to the fetus. • At 4 months completely developed • By birth it is 1” thick, 8” diameter, 1lb • If the woman is undernourished during her pregnancy, the placenta does not transfer essential nutrients to the fetus.
Umbilical Cord • 20” long and reaches from fetus’ stomach to the placenta. • Carries away waste from the baby and returns the waste products back to the mother. • Brings oxygen, food, and nutrient rich blood to the embryo to keep it alive. • ▪ Thick garden-like hose that will not knot due to Whartons’ Jelly substance.
Amniotic Sac and Amniotic Fluid • Sac contains embryo and amniotic fluid • A clear and transparent membrane that is very strong until broken • 4 cups of amniotic fluid at birth that is replenished 9 times a day. • The fluid protects baby from bumps, bruises, and jolts • Prevents shock to the fetus, keeps a constant temperature, and keeps the fetus from adhering to the uterine wall.
Use this link to help you fill in this portion of your study guide http://www.whattoexpect.com/pregnancy/week-by-week/landing-weeks.aspx Station 2 Month at a Time
Month 0 • Begins 3 weeks after 1st day of last period • Ovulation occurred and the egg/ovum was released • Sperm (several hundred million) deposited into female’s body and begins travel to find the egg in the fallopian tube. • The sperm beats against the ovum membrane • Sperm sheds its tail and burrows inside. • 2 cells now become one and begin to quickly divide to form a human being. • Begins to travel down the fallopian tube and 5-7 days after conception, the zygote implants itself into the endometrial lining
First Month for Baby • Zygote travels into the uterus. • Rapid cell division. • Embryo implants into uterus. • Heart begins to beat. • Nervous system.
Month 1 Events for Baby • Embryo phase begins • Days after conception: • 9 – begins to take shape • 17 – has blood cells • 18 – occasional heart pulsation • 19 – eyes start to develop • 20 – nervous system foundation set • 24 – vital organs begin • 25 – heart beats regularly • 28 – 40 pairs of muscles, limb buds, trunk of body is formed • 30 – develops ears and nose • 31 – hand, arm, shoulder region formed • 33 – hand section formed • Baby ¼” long (length of rice)
By the end of the First Month for Mom • Misses her period. • Already 2 weeks pregnant when she skips a period. • Changes in estrogen & progesterone levels.
Month 2 Events ▪Internal organs and neural system still forming ▪Blood is circulating ▪Still days after conception 40 days – body movements visible by ultrasound 42 days – skeleton complete 43 days – brain puts off electrical brain waves 49 days – has a miniature doll appearance 56 days – moves, squints, swallows, yawns, and tongue moves ▪Baby is 1.5” long
Second Month for Mom • Nausea/Vomitting (Morning Sickness) • Frequent urination • Mood swings
Second Month for Baby • Head develops rapidly. • Face, eyes, and ears take shape. • Internal organs • Sex organs. • Arm & leg buds. • Nails are forming • 1 inch 1/10 oz.
Nutrition for a Pregnant Woman - Link http://www.mypyramid.gov/mypyramidmoms/index.html
Third Month for Mom • Continued nausea. • Frequent urination. • Cravings. • Increased appetite.
Third Month for Baby • Head grows rapidly. • Bone formation. • Digestive organs function. • Arms, legs and fingers move. • 3 inches 1 oz.
End of the First Trimester • Time for mom to adjust to pregnancy. • Baby grows most rapidly. • All internal organs are complete. • Mom must be very careful with health.
Fourth Month for Mom • Body is adjusted to pregnancy. • Increased appetite. • Gained 2-4 lbs. • Clothes fitting snug.
Fourth Month for Baby • Bones harden. • Actively moving. • Lower parts of body grow rapidly. • Sex organs fully formed. • Heartbeat detected. • 7 inches 5 oz.
Fifth Month for Mom • Mild back-aches. • Size change is obvious to others. • Hears heart beat. • Ultrasound. • Feels movement. • Gains 5-8 lbs.
Fifth Month for Baby • Lanugo hair. • Vernix. • Ears and nose develop cartilage. • Finger and toe nails. • Can suck thumb, hiccup, and kick. • 12 inches 14 oz.
Sixth Month for Mom • Increased need for sleep. • Gained 10-12 lbs.
Sixth Month for Baby • Eyes and eyelids fully formed. • Fat developing under skin. • Practices breathing movements. • 14 inches 2 pounds
End of Second Trimester • Baby continues to develop and grow. • Mom feels good. • Easiest trimester for mom and baby.
Seventh Month for Mom • Effects posture. • Leg cramps. • Back-aches. • Waddling. • Gains 12-15 pounds.
Seventh Month for Baby • Brain developing rapidly. • Inhales amniotic fluid to develop lungs. • Gaining lots of weight. • 17 inches 3 pounds
Eighth Month for Mom • Heartburn. • Difficulty breathing. • Multiple small meals. • Increased urination. • Back, leg and muscle aches. • Gains 15-20 pounds.
Eighth Month for Baby • Fat is stored for later use. • Fingernails reach beyond fingertips. • Rapid growth. • Sheds vernix & lanugo. • 17 inches 5 pounds
Ninth Month for Mom • Baby drops into pelvis. • Contractions. • Gains 20-30 pounds. • Gives birth!!!!
Ninth Month for Baby • Organ system fully functional. • Vernix covers entire body. • Settle into head-down position for birth. • 21 inches 7 pounds
End of Third Trimester • Most difficult for mom. • Baby gains weight rapidly. • Both are ready for birth!
Welcome to the World! Octo-Mom Birth Link