HESI A2
HESI A2 Anatomy and Physiology Quizlet
1. Which of the following endocrine system glands releases the thyrotrophic-releasing hormone, growth hormone-releasing hormone, and gonadotropin-releasing hormone?
- A. Thymus
- B. Pituitary gland
- C. Pineal gland
- D. Hypothalamus
Correct answer: D
Rationale: The correct answer is D, the Hypothalamus. The hypothalamus is responsible for releasing key hormones like thyrotrophic-releasing hormone, growth hormone-releasing hormone, and gonadotropin-releasing hormone. These hormones play essential roles in regulating various body functions by influencing the activities of other endocrine glands. Choices A, B, and C are incorrect because the thymus is involved in immune function, the pituitary gland releases different hormones, and the pineal gland primarily produces melatonin, not the hormones mentioned in the question.
2. What does Vacuous mean?
- A. Empty
- B. Full
- C. Dense
- D. Bright
Correct answer: A
Rationale: The correct answer is A: 'Empty.' Vacuous means lacking intelligence, empty-headed, or devoid of substance. Choice B, 'Full,' is incorrect as it is the opposite of vacuous. Choice C, 'Dense,' means closely compacted or stupid, not vacuous. Choice D, 'Bright,' means giving out or reflecting a lot of light, not vacuous.
3. Which statement would not be inferred by the reader in the passage about Super Foods?
- A. Instant oatmeal can be part of a healthful breakfast.
- B. Blueberries are an especially healthful food.
- C. Certain grains and dairy products are super foods.
- D. Super foods are more expensive than processed foods.
Correct answer: D
Rationale: The passage does not imply or provide information regarding the cost of superfoods compared to processed foods. Therefore, D is the correct answer, as it identifies a statement that cannot be inferred from the passage.
4. In order, from lower to upper, the layers of the atmosphere are:
- A. Exosphere, thermosphere, mesosphere, stratosphere, troposphere
- B. Troposphere, stratosphere, mesosphere, thermosphere, exosphere
- C. Mesosphere, troposphere, stratosphere, thermosphere, exosphere
- D. Thermosphere, troposphere, stratosphere, mesosphere, exosphere
Correct answer: B
Rationale: The correct order of the layers of the atmosphere, from lower to upper, is troposphere, stratosphere, mesosphere, thermosphere, exosphere. The troposphere is the lowest layer where weather phenomena occur. The stratosphere contains the ozone layer, which absorbs and scatters the solar ultraviolet radiation. The mesosphere is where most meteorites burn up upon entering the Earth's atmosphere. The thermosphere is characterized by high temperatures due to the absorption of solar radiation. The exosphere is the outermost layer where the atmosphere transitions into space. Therefore, option B is the correct sequence, as it reflects the ascending order of the Earth's atmospheric layers.
5. Which of the following is not listed as a detail in the passage about microbes?
- A. Babies are born coated with germs from the birth canal.
- B. Mice and humans respond to microbes differently.
- C. Few people share the same microbes in the same quantities.
- D. Human bodies contain far more microbes than they do cells.
Correct answer: B
Rationale: The correct answer is B because the passage does not detail that mice and humans respond to microbes differently. The passage discusses how laboratory mice required a particular strain of bacteria to help their immune systems function correctly, indicating a difference in how mice and humans respond to microbes. Choices A, C, and D are all details mentioned in the passage: A discusses babies being coated with germs from the birth canal, C talks about the variation in microbes among individuals, and D states that human bodies contain more microbes than cells.
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