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The left ventricle is thicker and more muscular than the right ventricle because it pumps blood at a higher pressure.

By teenage and adult ages, its walls have thickened to three to six times greater than that of the right ventricle. This reflects the typical five times greater pressure workload this chamber performs while accepting blood returning from the lungs veins at ~80mmHg pressure and pushing it forward to the typical ~120mmHg pressure in the aorta during each heartbeat. (The pressures stated are resting values and stated as relative to surrounding atmospheric which is the typical "0" reference pressure used in medicine.)

In short, it has to pump blood to the rest of the body, instead of just the lungs as the right ventricle.

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15y ago
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15y ago

The left ventricle has to pump blood through the systemic circulation, which has a total vasculature length much longer than the pulmonary circulation (supplied by the right ventricle). Since total vasculature length is directly related to resistance, the left ventricle has to have more muscles to overcome the greater resistance.

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14y ago

The left ventricle has thicker walls as it needs to be stronger as it pumps blood to the whole body, while the right ventricle only pumps blood to the lungs which are relatively close to the heart

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13y ago

Because it needs to pump blood further around the whole body instead of to the lungs and back.

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13y ago

The left ventricle has more muscle because it pumps blood to the rest of the body, the right ventricle only pumps blood to the lungs which is a lot closer. :)

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14y ago

because the heart is on the left side of your body

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Q: Why does the left ventricle have more muscle?
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Related questions

Which ventricle has more cardiac muscle?

The left ventricle has more muscle because it pumps blood to the rest of the body, the right ventricle only pumps blood to the lungs which is a lot closer.


Why is the wall of the left ventricle thicker the the wall of the right ventricle?

The Left Ventricle has to send blood all through the body. This requires more force, therefore more muscle.


Why are the wall of the left ventricle is thicker than the wall of the right ventricle?

The Left Ventricle has to send blood all through the body. This requires more force, therefore more muscle.


Would the left or right ventricles of the pigs heart have more cardiac muscle?

The left ventricle would have more.


What is the significance of the difference in thickness of the myocardium of the right ventricle and the left ventricle?

The left ventricle pumps blood to the entire body, while the right ventricle pumps blood only to the lungs, which are immediately adjacent to the heart. Hence, the left ventricle has to pump with greater force, and requires more muscle to do it.


Would the left or right ventricles of a pigs heart have more cardiac muscle?

The left ventricles of the fetal pig has more cardiac muscle than that of the right ventricles. This is due to the fact that the left ventricles are responsible for pumping circulated blood throughout the circulatory system, while the right ventricles are responsible for pumping blood to the lungs.


Where in the heart is the muscle strongest?

It is the Left Ventricle.


Where are the papillary muscle?

inside the left and right ventricle


Which heart chamber has the thickest walls?

The left ventricle, it works the hardest and needs the most muscle mass.


Is the right heart chamber usually larger than the left?

No, the left side is typically larger than the right because of the left ventricle. The left ventricle is responsible for pumping blood throughout the entire body, which requires more muscle. It pumps blood with five times more pressure than the right ventricle.


What adaptation do you see with the walls of the left ventricle being thicker than those of the right ventricle?

The wall of the left ventricle is thicker because it pumps blood to the entire body. The right ventricle pumps blood to the lungs, so it does not have to be as strong as the left ventricle.The oxygenated blood that comes into the left ventricle has to be transported to all the parts of the body. For this reason, the left ventricle has thicker muscle walls that pump blood at a higher pressure than the right ventricle that pumps blood only to the lungs.


Why is the left ventricle the most powerful of the heart?

The Left ventricle is delicious, so the myocardium is sweeten it.