Nursing Elites

1. Which of the following statements best summarizes the central purpose of this text?

• A. Gulliver details his experiences and interactions with the natives of the new land.
• B. Gulliver observes the unique customs and traditions of the society he encounters.
• C. Gulliver becomes acquainted with the people and practices of his new surroundings.
• D. Gulliver reflects on the cultural differences between his homeland and the new land.

Correct answer: C

Rationale: The correct answer is C because the text describes how Gulliver becomes familiar with the customs and practices of the new society he finds himself in. He interacts with the natives, learns their language, and participates in their shows, indicating his growing understanding and acceptance of the new culture. Choice A is incorrect because the text goes beyond detailing his experiences to focus on his growing familiarity with the society. Choice B is incorrect because Gulliver not only observes but actively engages with the customs. Choice D is incorrect as the focus is on Gulliver's adaptation rather than reflecting on cultural differences.

2. Which cells myelinate neurons in the PNS?

• A. Oligodendrocytes
• B. Astrocytes
• C. Schwann cells
• D. Microglia

Correct answer: C

Rationale: Schwann cells are the glial cells responsible for myelinating neurons in the peripheral nervous system (PNS). They form the myelin sheath around axons, which helps in the conduction of electrical impulses. Oligodendrocytes, on the other hand, myelinate neurons in the central nervous system (CNS). Astrocytes primarily provide support for neuronal function by regulating the chemical environment around neurons and maintaining the blood-brain barrier. Microglia are part of the immune response in the CNS, where they act as the resident macrophages, playing a role in immune surveillance and response to injury or disease. Therefore, the correct answer is Schwann cells (Choice C) as they specifically myelinate neurons in the PNS, differentiating them from the other cell types mentioned in the choices.

3. Which element's neutral atom has 2 electrons in the first shell and 6 electrons in the second shell of the electron cloud?

• A. Beryllium
• B. Carbon
• C. Helium
• D. Oxygen

Correct answer: D

Rationale: The correct answer is Oxygen. Oxygen has a total of 8 electrons, with 2 in the first shell and 6 in the second shell. This configuration matches the description provided in the question. Choice A, Beryllium, has 2 electrons in total, so it cannot have 2 in the first shell and 6 in the second. Choice B, Carbon, has 6 electrons in total, so it also does not match the given electron distribution. Choice C, Helium, has only 2 electrons in total and therefore does not fit the electron configuration described in the question.

4. Which term describes the ability of a substance to conduct electricity?

• A. Reactivity
• B. Density
• C. Conductivity
• D. Viscosity

Correct answer: C

Rationale: Conductivity is the correct term used to describe the ability of a substance to conduct electricity. Reactivity is the measure of a substance's tendency to undergo chemical reactions. Density refers to the mass per unit volume of a substance, while viscosity is a measure of a fluid's resistance to flow. In the context of conducting electricity, conductivity is the most appropriate term as it directly relates to the substance's electrical conductive properties.

5. By examining the parts of each word, determine which of the following words refers to 'a drug that removes feeling or sensation.'

• A. Hyperalgesia
• B. Subcranial
• C. Hypoglycemic
• D. Anaesthetic

Correct answer: D

Rationale: The correct answer is 'Anaesthetic'. 'Anaesthetic' refers to a drug that removes feeling or sensation. The prefix 'ana-' means without, and the root 'esthetic' relates to sensation or feeling. 'Hyperalgesia' refers to increased sensitivity to pain, 'Subcranial' does not relate to drugs or removing sensation, and 'Hypoglycemic' refers to low blood sugar levels, not a drug that removes feeling or sensation.

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