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Conception Pregnancy and Prenatal Development

Conception Pregnancy and Prenatal Development. http://www.baby2see.com/development/week1.html. Menstrual Cycle. Most girls start their period bewteen age 11-14 Woman are most fertile days 11-17 Sperm can live inside the reproductive track for up to 5 days.

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Conception Pregnancy and Prenatal Development

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  1. Conception Pregnancy and Prenatal Development http://www.baby2see.com/development/week1.html

  2. Menstrual Cycle • Most girls start their period bewteen age 11-14 • Woman are most fertile days 11-17 • Sperm can live inside the reproductive track for up to 5 days http://kidshealth.org/misc/movie/bodybasics/bodybasics_female_repro.html

  3. Stages of Pregnancy • Pregnancy begins the moment an egg is fertilized http://www.babycenter.com/2_inside-pregnancy-weeks-1-to-9_10302602.bc http://www.youtube.com/watch?v=aR-Qa_LD2m4&feature=fvwrel • Three Trimesters • Approximately 3 months each • Full term pregnancy is 38-40 weeks • Approximately 9 months

  4. Fetal Development Stages • Zygote Stage – First 2 weeks • Sperm unites with ovum (egg) • Embryo Stage – Next 6 weeks • Fetus Stage – Week 9- end

  5. First TrimesterMonth 1 Week 2 Week 4 • Egg implants in the endometrium of the uterus in about 5-8 days after fertilization Size: Half size of grain of rice Placenta (sometimes called "afterbirth") begins developing Heart- starts to pump,

  6. 2nd Month- Embryo (1st Trimester) • Size- 1 to 2 inches • Moving (mother can’t feel) • Teeth fingers and toes are developing • Central nervous system- is now functioning • By 8 weeks all body systems are present and now baby is called fetus Photograph by University of Minnesota Medical Photographer, Robert Wolfe. 1972

  7. 3rd Month – Fetus (1st Trimester) • Size- 3 inches • Grasp reflex starts • Has Fingernails • Heartbeat can be heard with a stethoscope • Umbilical cord- provides oxygen through it • Suck his thumb

  8. First Trimester Week 12 fetus is about 3 inches long

  9. 4th Month – Fetus (2nd Trimester) • Size- begins at 5-9 inches • Swallows amniotic fluid and passes it as urine • Lanugo-Fine hair covers entire body • Brain fully developed • Fetus can hiccup, move around • Can determine the gender

  10. 5th Month – Fetus (2nd Trimester) • Size- 12 inches • Times of sleep and rest • Can hear • Mother can feel baby Kick • “Quickening” baby’s first movement

  11. 6th Month – Fetus (2nd Trimester) • Size- 14 inches • Sweat glands develop – regulate body temp • White film- “Vernix” waxy- protects the baby's skin from amniotic fluid • Has hand and startle reflex • Responds to sound • Survival is good

  12. Second Trimester

  13. 7th Month – Fetus (3rd Trimester) • Size- 16 inches • Baby can survive • Voice- recognizes mothers voice

  14. 8th Month – Fetus (3rd Trimester) • Size- 18 inches • Fat- Rapid growth • Lungs are maturing • Brain is growing rapidly

  15. 9th Month – Fetus (3rd Trimester) • Size- 20 inches about 7lbs • “Lightening”- uterus sinks baby drops • Not much movement • Fetus gets in head down position http://www.youtube.com/watch?v=jvanNDQhlYI

  16. Third Trimester http://www.babycenter.com/video

  17. Pregnancy Symptoms and Discomforts • Monthly period stops • Possible sweating due to higher body temperature • Frequent urination or leaking • Gain of 20-30 pounds • Hair may become thick and healthy • Breasts become larger and may be tender • Appetite increases • Possible stretch marks on stomach • Possible varicose veins • Increased fatigue • Lower back pain • Trouble sleeping • Possible swelling feet and hands • Nausea

  18. Things to Avoid During Pregnancy • Smoking • Alcohol • Hair Products – permanents, hair color • Lead • Work-related hazards • Paint • Household cleansers • Caffeine • Medications • Undercooked meat (Toxoplasmosis) • Contact with cat feces (Toxoplasmosis)

  19. Pregnancy Complications • Preeclampsia • A type of high blood pressure • Checked for every doctor visit • Gestational diabetes • Typically disappears after delivery • Diagnosed by routine glucose screening test during 6th or 7th month • Post-partum depression

  20. Heredity and Genetic Diseases • Heredity: Transfer of traits from parent to child • Gene: A heredity unit that determines a particular physical or mental trait • Genetic diseases: Occurs when certain genes are abnormal, causing disease or disabilities • More than 200 genetic disorders

  21. Two Examples of Common Genetic Diseases • Down Syndrome • Extra chromosome present in all or some cells • Most commonly occurring genetic disease • Up to 50% have congenital heart defects • Neuromuscular diseases • Most common are muscular dystrophy and Amyotrophic Lateral Sclerosis (ALS) • Some signs appear at birth, others later

  22. End Notes • Resources: • Wpclinic.org • YouTube

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