It’s a common belief that the left side of the human heart is generally stronger than the right side. While there is some anatomical and laboratory evidence to support this idea, it may not always be the case.
A number of anatomical studies have found that the left ventricle, the side of the heart responsible for distributing blood around the body, is larger and thicker than the right. As a result, it’s thought that the left side is better equipped to handle the high pressures of the body’s arterial system.
Through testing in laboratories, scientists have found that the left ventricle is better able to cope with exercise than the right. In particular, it’s been found to increase cardiac output more efficiently, which is an indication of its greater strength.
There are some circumstances in which the right side of the heart can be as strong, if not stronger, than the left side. This includes certain disorders of the heart muscle, or cardiomyopathies, which can lead to impaired contractility of the left ventricle.
In addition, some medical conditions which reduce the pressure in the body’s arterial system can cause the right ventricle to work harder and become stronger than the left.
Overall, the left side of the heart is generally thought to be the stronger of the two. This is based on anatomical and laboratory evidence as well as certain medical conditions which can weaken the left side. However, there are certain instances in which the right side can be stronger.
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