Question 48

Loss of arterial wall elasticity is always caused by disease.

This statement is not a fact stated in the passage. While the passage mentions that an increase in blood pressure can occur if the arterial walls lose some elasticity due to age or disease, it does not assert that loss of elasticity is always caused by disease.

A) Ventricular contracting injects roughly 70 mL of blood into a vascular system.

This statement is accurate as it reflects the information provided in the passage, which explicitly states that ventricular contracting injects roughly 70 mL of blood into the vascular system. Therefore, this option is a fact stated in the passage.

B) Blood pressure is typically measured in the brachial artery of the arm.

This statement is also correct and aligns with the passage, which indicates that blood pressure is typically taken in the brachial artery due to varying pressures at different locations in the circulatory route. Thus, this option is factual based on the text.

C) Blood pressure is commonly expressed as a ratio of the systolic pressure over the diastolic pressure.

This statement is accurate and is directly supported by the passage, which describes the common expression of blood pressure as a ratio of systolic to diastolic pressure. Therefore, this option is indeed a fact stated in the passage.

D) Loss of arterial wall elasticity is always caused by disease.

This statement is incorrect as it misinterprets the passage. The passage indicates that loss of elasticity can occur due to age or disease, but does not claim that it is always caused by disease. This makes it the only option that is not a fact stated in the passage.

Conclusion

The correct answer is option D, as it incorrectly asserts that loss of arterial wall elasticity is always caused by disease, a claim not supported by the passage. All other options accurately reflect facts presented in the text, demonstrating the importance of careful interpretation of information regarding blood pressure and arterial health.