Nursing Elites

1. Which part of the neuron is responsible for transmitting signals away from the cell body and toward other neurons or muscles?

• A. Axon
• B. Dendrite
• C. Synapse
• D. Myelin sheath

Correct answer: A

Rationale: The axon is the part of the neuron responsible for transmitting signals away from the cell body and toward other neurons or muscles. It is a long, slender projection covered by the myelin sheath, which speeds up signal transmission. Dendrites, on the other hand, receive signals from other neurons and transmit them toward the cell body. The synapse is the junction between two neurons where communication occurs, but it is not responsible for transmitting signals away from the cell body.

2. The lymphatic system is a network of vessels and organs that plays a vital role in:

• A. Transporting oxygen and nutrients to cells
• B. Carrying waste products away from tissues
• C. Regulating body temperature
• D. Producing red blood cells

Correct answer: B

Rationale: The correct answer is B: Carrying waste products away from tissues. The lymphatic system functions to maintain fluid balance in the body by removing excess fluid, filtering out harmful substances, and transporting waste products away from tissues. It does not primarily focus on transporting oxygen and nutrients to cells, regulating body temperature, or producing red blood cells. Choices A, C, and D are incorrect as the primary function of the lymphatic system is related to waste removal and maintaining fluid balance in the body, rather than roles such as nutrient transport, temperature regulation, or red blood cell production.

3. When is a solution considered saturated?

• A. More solute cannot be dissolved
• B. The solvent starts to evaporate
• C. The solution becomes cloudy
• D. It reaches a specific temperature

Correct answer: A

Rationale: A solution is considered saturated when it has dissolved the maximum amount of solute that can be dissolved at a given temperature. At this point, adding more solute will not result in further dissolution, indicating that the solution is saturated. The other choices are incorrect because the solvent evaporating or the solution becoming cloudy are not definitive indicators of a saturated solution. Additionally, reaching a specific temperature does not determine saturation, as the solubility of a solute can vary with temperature. Therefore, the correct answer is that more solute cannot be dissolved in a saturated solution.

4. The old clock hadn't worked in years, and _____ Ally finally decided to take it off the wall. Which of the following transition words or phrases is most appropriate to complete the sentence?

• A. as a result
• B. conversely
• C. then again
• D. similarly

Correct answer: A

Rationale: The correct answer is 'as a result.' This transition word is most suitable in this context as it indicates a logical consequence. The old clock not working for years led to Ally deciding to take it off the wall. Choices B, C, and D are incorrect. 'Conversely' suggests a contrast, 'then again' implies reconsideration or a contrasting point, and 'similarly' indicates a comparison, none of which align with the cause-and-effect relationship presented in the sentence.

5. The connection caused an insatiable curiosity within Helen. What does the word 'engendered' mean as used in this sentence?

• A. Caused to exist
• B. Made sense of
• C. Connected
• D. Satisfied

Correct answer: A

Rationale: The word 'engendered' in this context means to cause something to come into existence or to bring about. In the sentence, it indicates that the connection sparked an insatiable curiosity within Helen, suggesting that it created or triggered this strong curiosity in her. Choice B, 'Made sense of,' is incorrect as 'engendered' does not imply making sense of something. Choice C, 'Connected,' is incorrect as 'engendered' goes beyond just establishing a connection, it means to cause or produce. Choice D, 'Satisfied,' is incorrect as 'engendered' does not mean satisfied, but rather initiating or creating something.

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