Question

Why the walls of ventricles are thicker than the walls of atria?​

Answer 1

Answer:

because they have to overcome the pressure of blood made by heart but the arteries have to just flow them not to take any tension or pressure.

Answer 2

$\huge \bf \red{ANSWER}$

Ventricles have to pump blood into various organs with high pressure, so they have thicker walls than atria.

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