1. Healthy pregnan- adequate intake of vitamins and minerals
cy healthy body weight
controlling existing health conditions
avoidance of teratogens
2. Teratogens compounds that can increase the risk of a birth defect
caffeine, drugs, alcohol, and tobacco.
Tobacco: miscarriage, stillbirth, preterm delivery, and low
birth weight infants
alcohol: FAS, physical and mental disabilities and growth
retardation
drugs: low birth weight, preterm delivery, miscarriage, birth
defects, and infant addiction.
3. Blastogenic (Day 1 to 14): A period of rapid cell division Day 14: An
stage embryo is formed.
4. Embryonic stage (Week 2 to 8): The organ system develops. Week 5: The
heart begins to beat. Week 8: The embryo is now known
as a fetus.
5. Fetal Stage (Week 9 to 40): Period of continual growth and develop-
ment
6. zygote formed from combination of egg and sperm
7. placenta provides oxygen and nutrients from the mother's blood to
the fetus and also allows for the transfer of waste from the
fetus and into the mother's system for excretion
8. first trimester exposure to toxins and inadequate nutrient intake can
have an adverse effect on the fetus
quality of the mother's diet is more important than the
quantity
9. second trimester development of the hands, feet, arms, and legs occurs,
and the fetus begins to resemble a baby
physiological changes to mom's body in order to support
the pregnancy and prepare for birth.
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, BIOD 121 Module 6 Test Questions with Verified Answers
10. third trimester fetus will double in length and will increase weight to
approximately 7 to 9 pounds.
11. low birth weight a birth weight of less than 5.5 pounds
(LBW)
12. small for gesta- an infant small in size, measured relative to its gestational
tional age (SGA) stage
13. calorie during quality more important than quantity
pregnancy need for certain nutrients increase by 50% during preg-
nancy.
calorie needs during the second and third trimester only
increases by approximately 20%.
14. adequate weight 25-35 pounds total
gain 1-4 pounds during the first trimester and then approxi-
mately 1 pound per week during the remainder of the
pregnancy.
Underweight: 28 to 40 pounds
Normal: 25 to 35 pounds
Overweight: 15 to 25 pounds
Obese: 11 to 20 pounds
15. increased Pregnant moms require an additional 25 grams protein per
protein/carbohy- day above RDA
drate needs inadequate carbs --> ketones, harmful to fetal brain
16. vitamin needs Folate is needed for cell development and the synthesis
of DNA. Without adequate folate, the pregnant mom may
develop anemia and fetus may have neural tube defects
17. increased miner- especially true of iodide, zinc, iron, and calcium.
al needs iron: required due to increased blood volume as well as
to provide iron stores to the fetus. anemia --> preterm
delivery, low birth weight infants, and increased risk for
fetal death.
Calcium: needed in the formation of the baby's teeth,
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