NEET UG · Biology

Body Fluids and Circulation

Blood composition, heart, cardiac cycle, ECG, double circulation, disorders.

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  • Q1 · Body Fluids and Circulation · EASY

    Which of the following is the correct composition of normal human blood plasma by volume?

  • Q2 · Body Fluids and Circulation · MEDIUM

    During the cardiac cycle, the second heart sound (dub) is produced by the closure of which valves?

  • Q3 · Body Fluids and Circulation · EASY

    In the human circulatory system, which blood vessel carries oxygenated blood from the lungs to the left atrium?

  • Q4 · Body Fluids and Circulation · MEDIUM

    If the stroke volume of the heart is 70 mL and the heart rate is 72 beats per minute, what is the cardiac output?

  • Q5 · Body Fluids and Circulation · HARD

    A patient's ECG shows an abnormally prolonged P-R interval (greater than 0.20 seconds). This most likely indicates which of the following cardiac conditions?

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