Science, asked by eronpema6, 7 months ago

Which of the following events takes place in human heart when it pumps the blood into arteries:- (i) contraction of ventricles (ii) contraction of Atria (iii) closure of semilunar valves (iv) closure of auriculo ventricular valves. *

Answers

Answered by sohammorea24

2

Answer

contractions of ventricules .

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