ATI RN
Exam 4 Psychology 101
1. Which term describes a combination of economic and social factors detailing an individual or family's position, including income, education, and occupation?
- A. Culture
- B. Socioeconomic status
- C. Risk factors
- D. Ethnic gloss
Correct answer: B
Rationale: The correct answer is B: Socioeconomic status. Socioeconomic status (SES) is a term used to combine economic and social factors to describe an individual's or family's position in society. Choice A, Culture, refers to the beliefs, customs, and practices of a specific group of people. Choice C, Risk factors, are characteristics or exposures that increase the likelihood of developing a disease or injury. Choice D, Ethnic gloss, is not a term related to the description of an individual or family's economic and social position.
2. While out for a walk, you come across a ferocious dog. You feel your heart beating faster and your palms begin to sweat. Which part of the peripheral nervous system is activated in this situation?
- A. Autonomic
- B. Sympathetic
- C. Parasympathetic
- D. Somatic
Correct answer: B
Rationale: The correct answer is B: Sympathetic. When encountering a stressful situation like a ferocious dog, the sympathetic nervous system is activated, leading to the 'fight or flight' response. This response triggers physiological changes like increased heart rate, sweating, and heightened alertness to prepare the body to deal with the perceived threat. The autonomic nervous system (Choice A) encompasses both the sympathetic and parasympathetic divisions, so it's a broader category. The parasympathetic nervous system (Choice C) is responsible for the body's 'rest and digest' functions, which are opposite to the physiological changes seen in a stress response. The somatic nervous system (Choice D) controls voluntary movements and sensory information, not the physiological responses seen in a stress reaction.
3. What is the sequence in which growth starts at the center of the body and moves toward the extremities?
- A. Cephalocaudal pattern
- B. Proximodistal pattern
- C. Cephamodistal pattern
- D. Gene-environment correlation
Correct answer: B
Rationale: The correct answer is B: Proximodistal pattern. This pattern describes growth starting at the center of the body and moving towards the extremities. Choice A, Cephalocaudal pattern, refers to growth starting from the head and moving downwards, which is not the sequence described in the question. Choice D, Gene-environment correlation, does not relate to the sequential pattern of growth described in the question, making it incorrect.
4. Down syndrome is caused by ________
- A. a chemical imbalance.
- B. a gene on the X chromosome.
- C. possessing an extra X chromosome.
- D. possessing an extra chromosome in chromosome 21.
Correct answer: D
Rationale: Down syndrome is caused by possessing an extra chromosome in chromosome 21, not a chemical imbalance (choice A), a gene on the X chromosome (choice B), or possessing an extra X chromosome (choice C). The presence of an extra copy of chromosome 21, also known as trisomy 21, leads to the characteristic features and health problems associated with Down syndrome.
5. Normal human cells have ________.
- A. twenty-two chromosome pairs and one pair of sex chromosomes.
- B. twenty-one trisomy chromosome pairs, one autosomal pair, and one pair of sex chromosomes.
- C. twenty-one chromosome pairs and two trisomy chromosome pairs.
- D. twenty-three chromosome pairs.
Correct answer: A
Rationale: The correct answer is A. Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This adds up to a total of 46 chromosomes. Choice B is incorrect as it mentions twenty-one trisomy chromosome pairs, which is not a characteristic of normal human cells. Choice C is also incorrect as it states twenty-one chromosome pairs and two trisomy chromosome pairs, which is not accurate for normal human cells. Choice D is incorrect as it mentions twenty-three chromosome pairs, which is not the correct number for normal human cells.
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