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Because the net weight of the fluid in the blood is bigger, because the bigger size of the lower chambers (ventricles) allows more blood to accumulate in there, thus causing the need for thicker walls

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What are the lower chambers?

The lower chambers of the heart are the ventricles. In contrast, the upper chambers are the atria.


What lower chambers of the heart pump blood out of the organ?

The ventricles are the lower chambers of the heart. The atria are the upper chambers.


What is the function of the lower chambers?

The lower chambers of the heart have a different function than the upper chambers. The lower chambers pump the blood out of the heart into the body and lungs.


What is the lower part of the heart?

The heart is divided into four chambers. The two bottom heart chambers are called the ventricles. The upper chambers are the atrials.


Which organ has upper chamber and lower chamber?

The heart has upper and lower chambers.


Which chambers of the heart are the ventricles?

The ventricles are the lower chambers of the heart. The atria are the upper changes.


Two lower chambers of the heart are?

The lower heart chambers are ventricles. Atria are the upper chambers of the heart.


The two upper chambers of the heart in which blood collects before passing to the lower chambers are called?

The two upper chambers of the heart are called the atria. They receive blood from the body and the lungs and help to pump it to the lower chambers of the heart.


Does a human heart has four champers?

Yes, a human heart has four chambers. The atria are the upper chambers, and the ventricles are the lower chambers.


What is atira in your heart?

The atria are the upper chambers of the heart on both the right and left sides. The ventricles are the lower chambers.


True or false the interatial septum separates the lower chambers of the heart?

False. The interatrial septum separates the upper chambers of the heart, while the interventricular septum separates the lower chambers of the heart.


How many chambers are in are heart?

The human heart has four chambers. The atria are the upper chambers, and the ventricles are the lower chambers.