Ch. 15 notes

Ch. 15 notes - Ch. 15 Pregnancy and Lactation 1. 2. 3. 4....

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Ch. 15 Pregnancy and Lactation 1. There are several health habits that contribute to healthy pregnancies. 2. A man’s fertility may be affected nutrition. 3. Achieve and maintain a healthy body weight. 4. Choose an adequate and balanced diet. 5. Be physically active. 6. Receive regular medical care. 7. Manage chronic conditions. 8. Avoid harmful substances. 9. Growth and Development during Pregnancy A. A new life begins at conception. B. The growth and development of the zygote, embryo, and fetus proceed on their own schedule. C. There are critical periods that depend on nutrition to proceed smoothly. D. Folate is esp. important. * 10. Placental Development A. Takes place in the uterus, a muscular organ. B. The amniotic sac is the fluid filled balloon like structure that holds the fetus. C. The umbilical cord is a ropelike structure that delivers nutrients and oxygen and removes waste from the fetus. The umbilicus is the ‘belly button’. D. The placenta performs the functions of the respiration, absorption, and excretion for the fetus. 11. Fetal growth and development A. The sperm fertilizes the ovum. B. Zygote a. Fertilized ovum. b. Implantation occurs…. C. Embryo a. Two to eight weeks. b. Development of vital systems. D. Fetus 1
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Next seven months. b. Organs grow to maturity. c. From less than 1 ounce to 6 ½ to 9 pounds. 12. Critical periods are finite periods of intense development and rapid cell division. A. Neural tube defects a. The critical period is 17-30 days in gestation. b. Anencephaly affects brain development. c. Spina bifida can lead to paralysis or meningitis. B. Factors that increase occurrence of neural tube defects. a. Previous pregnancy with neural tube defects. b. Maternal diabetes. c. Maternal use of anti-seizure medications. 13. Critical periods A. Folate Recommendations A. Reduces risk of neural tube defects. B. RDA during pregnancy: 600 micrograms./day. C. Many fortified grains. D. Those who have previously given birth to a child with a neural tube defect may be prescribed a 4 milligram daily supplement. B. Chronic diseases a. Adverse influences during critical periods. b. Chornic disease in later life for the infant. c. Blood pressure, glucose tolerance, and immune functions. C. Fetal programming is the influence of substances during fetal growth on the development of diseases later in life. 14. Maternal Weight A. A mother’s weight prior to conception and weight gain during pregnancy will influence an infant’s birth weight. B. Higher birthweights present fewer risks for infants.
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Ch. 15 notes - Ch. 15 Pregnancy and Lactation 1. 2. 3. 4....

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