What prevents backflow of blood inside the heart during contraction?

+2 votes
404 views
asked May 23, 2017 in Biology by Kundan kumar (49,132 points) 34 384 1027
(a) Valves in heart
(b) Thick muscular walls of ventricles
(c) Thin walls of atria
(d) All of the above

1 Answer

+2 votes
answered May 23, 2017 by Vikash Kumar (144,729 points) 8 11 21
selected May 23, 2017 by sarthaks
 
Best answer
(d) All of the above

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