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Question 9674
NEET Biology · Medium

Body Fluids and Circulation: Heart sounds MCQ

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Heart soundsMediumQuestion 9674

Question

The first heart sound is produced at the beginning of:

  1. A
    Ventricular systole
    Correct
  2. B
    Atrial systole only
  3. C
    Joint diastole
  4. D
    ECG T wave only

Correct answer

Ventricular systole

Explanation

AV valves close when ventricles begin to contract.

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