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    Question

    Which of the following is/are true about blood pressure

    in the human body? I. This pressure is much greater in arteries than in veins. II. The pressure of blood during contraction is called diastolic pressure. III. The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.
    A Only III Correct Answer Incorrect Answer
    B Only I and III Correct Answer Incorrect Answer
    C Only II and III Correct Answer Incorrect Answer
    D All of the above Correct Answer Incorrect Answer

    Solution

    Statements I and III are correct. Statement II is opposite of what is correct. The pressure of blood inside the artery during ventricular systole (contraction) is called systolic pressure and pressure in artery during ventricular diastole (relaxation) is called diastolic pressure. Hence, option B is correct. 

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