Question

ASSERTION: The muscular walls of ventricles is thicker than the auricles REASON : It prevents back flow of blood.

Answer 1

Explanation:

1 ventricle are thick because it has to pump blood from heart to various distant organs hence requires a get muscle contraction. ... 2 the valves present between the auricles and ventricles prevents the back flow of blood when the ventricle is contracted

Answer 2

Explanation:

The assertion is true but reason is false.

ventricles have thicker muscular walls to pump the blood which needs high pressure and the blood is deoxygenated .