Q43 of 90 Page 113

Why ventricles have thicker walls than auricles?

Ventricles have thicker walls than auricles because:

i. The blood comes out of the heart into the ventricles at a very high pressure.


ii. The ventricles have to transport the blood from the heart to the different body parts.


iii. Hence there is a need for thick muscular walls of the ventricles.


iv. The pressure of blood in the auricles is not much so the walls of auricles are thinner than ventricles.


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