during the period of the embryo the becomes the

ATI RN

Growth and Development Exam

1. During the period of the embryo, the becomes the .

A. mesoderm; nervous system, lungs, internal organs, and skin
B. chorion; endocrine system, muscles, placenta, and skeleton
C. ectoderm; circulatory system, skin, skeleton, and internal organs
D. endoderm; digestive system, lungs, urinary tract, and glands Answer: D Page Ref: 78 Skill Level: Remember Topic: Prenatal Development Difficulty Level: Moderate

Correct answer: D

Rationale: During the period of the embryo, the endoderm becomes the digestive system, lungs, urinary tract, and glands. The endoderm is one of the primary germ layers that give rise to various internal organs in the developing embryo. It plays a crucial role in the formation of organs such as the digestive system, respiratory system, and glandular structures.

2. The discontinuous view of development holds that __________.

A. infants and preschoolers respond to the world in much the same way as adults do
B. growth is the process of gradually augmenting the skills that were present from the beginning
C. infants and children have unique ways of thinking, feeling, and behaving
D. development is a smooth process limited only by a lack of information and precision

Correct answer: C

Rationale: The discontinuous view of development holds that infants and children have unique ways of thinking, feeling, and behaving. This perspective suggests that development is not a continuous or smooth process, but rather occurs in distinct stages or phases marked by qualitative differences in abilities and behaviors. This contrasts with the idea that development is a gradual augmentation of skills present from the beginning (choice B) or that infants and preschoolers respond to the world in the same way as adults (choice A). Choice D is incorrect because the discontinuous view does not consider development as a smooth process limited by a lack of information and precision. Ultimately, the discontinuous view emphasizes the distinct and evolving nature of development across the lifespan.

3. What are the most obvious organized patterns of behavior in a newborn baby?

A. Reflexes
B. States of arousal
C. Shrill cries
D. Sleep patterns

Correct answer: A

Rationale: The correct answer is A: Reflexes. Reflexes are automatic, involuntary responses to specific stimuli and are the most obvious organized patterns of behavior in a newborn baby. Examples of newborn reflexes include sucking, rooting, grasping, and the Moro reflex. These reflexes are crucial for the newborn's survival and overall development. Choice B, states of arousal, refers to different levels of consciousness and responsiveness, not organized behavior patterns. Choice C, shrill cries, is a form of communication and not an organized behavior pattern. Choice D, sleep patterns, while important for newborns, are not the most obvious organized behavior patterns.

4. When children are research participants, __________.

A. Investigators need to seek the opinion of others if in doubt about the harmful effects of research.
B. They have the right to concealment of their identity on information collected in the course of research.
C. There is a need to inform them or their parents of the results of the research.
D. Informed consent of their parents as well as others who act on their behalf should be obtained.

Correct answer: D

Rationale: When children are research participants, it is essential to obtain informed consent from their parents or others who act on their behalf. This is to ensure that the child's rights and well-being are protected during the research process. Informed consent is a fundamental ethical principle in research involving children, as they may not have the capacity to fully understand the implications of their participation. Choice A is incorrect because seeking the opinion of others when in doubt about harmful effects is not a substitute for informed consent. Choice B is incorrect because children do not have an absolute right to conceal their identity in research, especially when it comes to ensuring their safety and well-being. Choice C is incorrect as it is important to inform children or their parents about the results of the research to maintain transparency and respect for their participation.

5. During the second trimester, a white, cheeselike substance called __________ emerges on the skin.

A. lanugo
B. corpus luteum
C. vernix
D. chorion

Correct answer: C

Rationale: During the second trimester of pregnancy, a white, cheeselike substance called vernix emerges on the skin of the developing fetus. Vernix is a protective layer that helps prevent the skin from becoming waterlogged during the time in the amniotic fluid. Choice A, lanugo, is incorrect as lanugo refers to the fine, soft hair that covers the body of a fetus. Choice B, corpus luteum, is incorrect as it is a temporary endocrine structure involved in the menstrual cycle. Choice D, chorion, is incorrect as it is one of the membranes that surround the embryo and later the fetus.