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Nursing Elites

ATI TEAS 7

anatomy

1. Which of the following blood vessels carries oxygenated blood from the lungs back to the left atrium of the heart?

Correct answer: B

Rationale: The correct answer is B: Pulmonary vein. The pulmonary vein is the blood vessel that carries oxygenated blood from the lungs back to the heart. Oxygenated blood flows from the lungs through the pulmonary veins to the left atrium of the heart, where it is then pumped out to the rest of the body through the aorta. The pulmonary artery, on the other hand, carries deoxygenated blood from the heart to the lungs for oxygenation. The aorta is the largest artery in the body and carries oxygenated blood from the heart to the rest of the body. The inferior vena cava carries deoxygenated blood from the lower body back to the right atrium of the heart. Therefore, the correct choice is B, the pulmonary vein, as it specifically carries oxygenated blood from the lungs back to the left atrium of the heart.

2. What happens to the speed of a sound wave when it travels from air to water?

Correct answer: A

Rationale: Sound waves travel faster in denser mediums like water compared to air due to stronger interactions between particles.

3. What is the term for the particles moving around within a substance?

Correct answer: C

Rationale: In most cases, the particles moving within a substance are individual molecules or atoms, depending on the state of matter.

4. A new drug successfully treats a disease in mice. This suggests the drug will also be effective in humans. True or False? False. Animal models don't always perfectly translate to humans due to biological differences. Further testing in humans is crucial before drawing conclusions about safety and efficacy. A conclusion based on scientific evidence should be:

Correct answer: B

Rationale: Scientific conclusions should always be open to revision and further testing as new evidence emerges. Science is a dynamic process that involves continuous questioning, testing, and refining of ideas based on the most current evidence available. It is essential to remain open-minded and willing to adjust conclusions in light of new information to ensure the most accurate and reliable understanding of the natural world.

5. What is the meaning of the idiom "to cross that bridge when we come to it"?

Correct answer: C

Rationale: The idiom suggests dealing with challenges as they arise, not before.

6. What property of a wave determines the loudness of sound when heard by the human ear?

Correct answer: b

Rationale: The amplitude of a sound wave correlates with its perceived loudness by the human ear.

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