Do you mean that the left ventricle's walls are thicker than the right's?
It's because one side has to pump blood only to the lungs, while the other side needs to pump blood to the entire body, and needs to be stronger.
The ventricle wall is thicker as it needs to pump blood from the heart to other parts of the body and so it has more pressure than the ventricle walls.
A ventricle's walls are thicker than those of the atrium because it needs to generate higher pressure. This higher pressure is needed to push blood into the circulation, while the atrium only needs to push blood into the ventricle.
The wall of the ventricle is thicker than the walls of the atria because the ventricle pumps blood throughout the body, and the wall of the ventricle needs to be thick snd muscular in order to do so.
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.
The walls of the left ventricles are very much thicker as compared to the walls of the right ventricle. The left ventricles has to push the blood to whole body. The right ventricle has to push the blood to the lungs only.
you are mistaken...the ventricular walls are thicker than the auricular walls.. The left ventricle is further thicker than the right ventricle. This is because the left ventricle has to transport blood to all the parts of the body and has to travel a long distance hence requires it to be transported at great pressure. As a result the wall is thicker. The auricles only have to pump blood into the ventricles underneath them and therefore don't require alot of pressure hence are not thick. The right ventricle however pumps the deoxygenated blood into the lungs and has to travel a relatively short distance since the lungs are close to the heart hence not alot of pressure is required either. All this explains why the Ventricular walls are generally thicker than the auricular walls.
The left ventricle must pump blood to the aorta which sends blood to the entire body. The right ventricle only has to pump blood to the lungs, therefore the left ventricle has to be stronger and thicker than the right.
The arterial walls are thicker because they need to withstand the pressure coming from the heart.
The lower two chambers of the heart are the ventricles. The left ventricle is larger, with thicker walls, than the right ventricle.
The short Answer: The ventricles have thicker walls than the atrium simply because this is the part of the heart that does most of the pumping action by contracting. It has to be strong and fairly thick to cope with the pressure. (Ventricles have thicker walls than the atrium, which creates a higher blood pressure. The left ventricle has thicker walls because it needs to pump blood to the whole body. The wall of the left ventricle is 8-15 mm The right atrium's wall is approximately 2mm in thickness, due to the combined influence of the low pressure of this chamber and the ease of pumping to low pressure areas)
The thicker walls of the left ventricle allow for greater pumping force. This increased force is needed because blood in the systemic circuit must travel much farther than that in the pulmonary circuit.
The right ventricle just receive the blood and pump it into the lungs only, but the left ventricle pump the blood to all round the body, to do the ventricle wall is more thicker, that's why the left ventricle have thicker wall..... Hope I helped you!! (Ivy Yumi Y)