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Question: Answered & Verified by Expert
Read the following statements (I-IV):

I. The machine that is used to obtain ECG of a patient is called an electrocardiograph.
II. The volume of blood pumped out by each ventricle per cardiac cycle is called the cardiac output.
III. The second heart sound is associated with the opening of both semilunar valves.
IV. Hypertension is denoted by the ratio of systolic and diastolic pressure in mm of mercury pressure.

How many statement(s) is/are correct from the above?
BiologyBody Fluids and CirculationNEET
Options:
  • A Two
  • B Three
  • C Four
  • D One
Solution:
1870 Upvotes Verified Answer
The correct answer is: One
The machine that is used to obtain ECG of a patient is called electrocardiograph. The volume of blood pumped out by each ventricle per cardiac cycle is called stroke volume. The second heart sound is associated with closure of both semilunar valves.

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