define the diastole cycle in the heart
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Nursing Elites

ATI TEAS 7

ATI TEAS Science Questions

1. What is the diastole cycle in the heart?

Correct answer: A

Rationale: The diastole cycle in the heart refers to the relaxation phase, where the heart chambers relax and fill with blood. This phase is crucial for the heart to refill and prepare for the next contraction (systole), which pumps blood out of the heart. Therefore, the correct answer is choice A, 'Relaxation of the heart.' Choices B, C, and D are incorrect in the context of cardiac physiology. Choice B, 'Contraction of the heart,' refers to systole, the phase of heart contraction. Choice C, 'Pulse rate of the heart,' is related to the number of heartbeats per minute, not the diastole cycle specifically. Choice D, 'Blood circulation,' is a broader term that encompasses the entire circulatory system rather than focusing on the heart's specific relaxation phase.

2. Which of the following prefixes means 'with'?

Correct answer: C

Rationale: The correct answer is C: 'con-'. The prefix 'con-' means 'with' or 'together,' as in words like 'convene' or 'connect.' Choice A, 'bio-', is a prefix that means 'life' or 'living organisms,' not 'with.' Choice B, 'per-', is a prefix that means 'through' or 'thoroughly,' not 'with.' Choice D, 'trans-', is a prefix that means 'across' or 'beyond,' not 'with.' Therefore, the correct choice that means 'with' is 'con-'.

3. How many pints are in one quart?

Correct answer: B

Rationale: The correct answer is B: 2 pints. There are 2 pints in one quart. A quart is equivalent to 2 pints, so each quart contains 2 pints. Choice A, 1 pint, is incorrect because a quart consists of more than 1 pint. Choice C, 3 pints, and Choice D, 4 pints, are also incorrect as they do not accurately represent the conversion of quarts to pints.

4. Convert 1.5 kilometers to meters.

Correct answer: A

Rationale: To convert kilometers to meters, you need to multiply by 1,000 since there are 1,000 meters in a kilometer. Therefore, 1.5 kilometers is equal to 1,500 meters (1.5 x 1,000 = 1,500). Choice A, '1,500 meters,' is the correct answer. Choice B, '150 meters,' is incorrect as it represents converting 0.15 kilometers to meters. Choice C, '15,000 meters,' is incorrect as it represents multiplying by 10,000 instead of 1,000. Choice D, '1.5 meters,' is incorrect as it doesn't convert the kilometers to meters accurately.

5. Janine was so nervous that she was surprisingly graceless and awkward on stage. What is the meaning of the word 'graceless' as used in the sentence below?

Correct answer: C

Rationale: The word 'graceless' in this context means lacking elegance or poise. Janine's nervousness caused her to act awkwardly and without the elegance one would typically expect on stage. Choices A, B, and D are incorrect. 'Against fear,' 'Without religion,' and 'Full of caution' do not accurately capture the meaning of 'graceless' in the given sentence.

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