Question

The ventricles have thick muscular walls where as the auricle has thin walls.why do you think thick muscular walls are necessary in the ventricles and not in the auricles

Answer 1

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Here is ur answer:
The ventricles of the heart havethicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria. The left ventricle also has a thicker muscular wall than the right ventricle, as seen in the adjacent image.

Answer 2

Because during ventricular systole the pressure is extremely high so that blood from pulmonary vein from right ventricle to lungs and Aorta from left ventricle can reach up to every part and every cell because ascending upward against gravity blood requires great force to flow against gravity.... and while during aurical systole the pressure required is not much high because the blood is just needed to be transferred to ventricle..