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Nursing Elites

ATI RN

Human Growth and Development Final Exam

1. Lanugo ________.

Correct answer: D

Rationale: Lanugo helps the vernix stick to the skin. Vernix is a waxy substance that covers the fetus's skin during pregnancy. Lanugo is a fine, downy hair that helps to anchor the vernix to the skin, providing protection and nourishment to the developing fetus. Choices A, B, and C are incorrect as they do not accurately describe the role of lanugo in prenatal development.

2. Newborn Mariana, who reacts strongly to unpleasant stimuli, is __________.

Correct answer: B

Rationale: Newborn Mariana, who reacts strongly to unpleasant stimuli, is described as susceptible to colic. Colic is often characterized by excessive crying and fussiness in newborn babies, which can be challenging to console. This description suggests that Mariana's strong reactions to unpleasant stimuli may make her more prone to colic. Choices A, C, and D are incorrect because the strong reactions to unpleasant stimuli do not imply being easy to console, affect REM sleep, or responsiveness to swaddling.

3. If pregnancy does not occur, the corpus luteum shrinks, and the __________.

Correct answer: D

Rationale: If pregnancy does not occur, the corpus luteum will shrink. As a result, the lining of the uterus is discarded through the process of menstruation. This shedding of the uterine lining is what causes menstrual bleeding. Choices A, B, and C are incorrect because they do not describe the physiological response of the body when pregnancy does not occur. The corpus luteum shrinking and the subsequent shedding of the uterine lining are part of the menstrual cycle, not processes related to cell duplication, zygote multiplication, or the duration of the germinal period.

4. __________ is the least-developed of the newborn baby’s senses.

Correct answer: C

Rationale: Vision is the least-developed of the newborn baby's senses. Newborns have limited visual acuity and are not able to focus clearly on objects. Over time, their vision will improve as they grow and develop.

5. Which statement about the harm done by teratogens is true?

Correct answer: B

Rationale: The statement that the genetic makeup of the mother and the developing organism plays an important role in the harm done by teratogens is true. Genetic factors can influence susceptibility to teratogens, and the interaction between genetic and environmental factors plays a significant role in determining the impact on the developing fetus. This highlights the importance of considering both genetic and environmental influences when assessing risks to prenatal development. Choice A is incorrect as passive smoking can indeed be harmful to the developing fetus. Choice C is incorrect as the negative impact of teratogens is often not reversible. Choice D is incorrect as serious defects can occur throughout prenatal development, not just in the germinal period.

Similar Questions

Shamona, a pregnant mother in Flint, Michigan, is concerned about the drinking water, which shows high levels of lead. Shamona should know that high levels of prenatal lead exposure are related to __________.
In healthy, physically fit women, regular moderate to vigorous exercise during pregnancy is related to __________.
During her labor, Renee asks for a mild dose of painkillers to help her relax. Renee will probably be given __________.
A 20-week-old fetus can __________.
G. Stanley Hall and his student, Arnold Gesell, __________.

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