Exam 3: Prenatal Development

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A screening procedure in which a small amount of amniotic fluid is extracted and tested for fetal genetic disorders is called ____________________.

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amniocentesis

What steps can a pregnant mother take to improve her chances of having a healthy infant?

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There are a number of steps a woman can take to optimize the health of her infant during pregnancy.These include seeking prenatal care at the earliest signs of pregnancy; consuming a nutritious diet and paying special attention to certain vitamins (A, C, and folacin) and minerals (calcium and iron); getting adequate rest; avoiding exposure to known teratogens, such as alcohol, nicotine, and certain medications; maintaining a healthy weight gain (not too much, nor too little); participating in daily physical activity; maintaining a positive emotional state; planning pregnancies during a woman's 20's and 30's; and, allowing two or more years between pregnancies.

By the twenty-eighth week, the breathing, blood and nervous systems are sufficiently developed so that the fetus can survive if born prematurely.

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Match each term with the correct definition. -Organ that filters out many harmful organisms

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A fertilized egg is implanted in the uterine wall toward the end of the ____ stage of pregnancy.

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Match each term with the correct definition. -Birth defect that typically occurs in infants born to older mothers

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What effect, if any, does a woman's age at the time of conception have on fetal development?

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Carbon monoxide in cigarette smoke reduces the ____________________ available to the fetus.

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Match each term with the correct definition. -Major organs and systems are formed

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Match each term with the correct definition. -Sampling test in which a needle is inserted and cells are taken from the placenta

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A mother's nutritional status at the time of conception has minimal effect on fetal development.

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Match each term with the correct definition. -Assessment of the newborn's condition at birth

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The term used to describe a mother's ability to feel fetal movement is called ____________________.

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Adolescent mothers give birth to the healthiest infants.

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Postpartum depression ____.

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Maternal smoking is a major cause of low birth weight (LBW) in infants.

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Most vital organ and system structures are formed during the ____________________ trimester.

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Match each term with the correct definition. -Technology used to monitor fetal growth

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Why do some pregnant women fail to receive adequate prenatal care?

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On an average, babies weigh approximately ____ at birth.

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