Question

10. What prevents Backflow of
Blood inside the heart during
Constraction
O Valves in Heart
O
Thick muscular walls of
ventricles
O Thin walls of Atria
O All of the above
Required
11. A 10mm long and in is​

Answer 1

Answer:

Valves in the heart.

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Answer 2

Answer:

As the heart pumps blood, a series of valves open and close tightly. These valves ensure that blood flows in only one direction, preventing backflow. The tricuspid valve is situated between the right atrium and right ventricle.

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