Question

WHY VENTRICLES HAVE THICk muscular WALLS THAN THE ATRIA ?​

Answer 1

Answer:

The ventricles of the heart have thicker 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. ... This is due to the higher forces needed to pump blood through the systemic circuit  compared to the pulmonary circuit.

Answer 2

Answer:

ventricles have thicker walls than atria because blood is pumped at a higher pressure than atria!