which of the following structures is responsible for preventing the backflow of blood from the left ventricle into the left atrium
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ATI TEAS 7

TEAS Test 7 science

1. Which of the following structures is responsible for preventing the backflow of blood from the left ventricle into the left atrium?

Correct answer: D

Rationale: The correct answer is D, the Mitral valve. The mitral valve, also known as the bicuspid valve, is situated between the left atrium and the left ventricle. Its primary function is to prevent the backflow of blood from the left ventricle into the left atrium during ventricular contraction. The other choices are incorrect because: A) The aortic valve prevents backflow from the aorta into the left ventricle. B) The pulmonary valve prevents backflow from the pulmonary artery into the right ventricle. C) The tricuspid valve prevents backflow from the right ventricle into the right atrium.

2. Considering the list of works that Angela read, into which category does 'The Cask of Amontillado' most likely fit?

Correct answer: C

Rationale: 'The Cask of Amontillado' by Edgar Allan Poe is most likely a short story based on the information provided. The list of works that Angela read consisted of classic literature. Since the rule states that short stories should be placed in quotation marks, it aligns with the formatting rule. Therefore, 'The Cask of Amontillado' is most likely categorized as a short story. Choice A, newspaper article, is incorrect because newspaper articles are usually not considered classic literature. Choice B, book chapter, is incorrect as 'The Cask of Amontillado' is a standalone work and not a chapter within a book. Choice D, television show episode, is incorrect as the list of works provided consists of classic literary works, not television shows.

3. Which of the following organs is responsible for detoxifying chemicals and metabolizing drugs?

Correct answer: B

Rationale: The correct answer is B: Liver. The liver plays a crucial role in detoxifying chemicals and metabolizing drugs. It also produces bile for digestion. The liver contains enzymes that help metabolize drugs and toxins, making them easier for the body to eliminate. The kidneys are primarily responsible for filtering blood and regulating fluid balance, the heart's main function is to pump blood, and the pancreas produces digestive enzymes and hormones like insulin, but they do not have the primary function of detoxifying chemicals and metabolizing drugs.

4. Convert 250 milliliters to liters.

Correct answer: B

Rationale: To convert milliliters to liters, you need to divide by 1000 since there are 1000 milliliters in a liter. Therefore, 250 milliliters is equal to 250/1000 = 0.25 liters. Choice A, 25 liters, is incorrect as it is a magnitude higher than the correct answer. Choice C, 2.5 liters, is also incorrect as it is 10 times greater than the correct conversion. Choice D, 0.025 liters, is incorrect as it is a magnitude lower than the correct conversion.

5. What is the author’s conclusion about the house on Pine Street?

Correct answer: D

Rationale: The author's conclusion about the house on Pine Street is that it was too expensive. This can be inferred from the description provided in the text, where it is mentioned that although the house had enough space inside, it didn't have a big enough yard for their dogs, and the cost of the house was well above their price range. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not align with the evidence from the text, which clearly points to the cost being the main issue with the house on Pine Street.

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