Why are the walls of ventricle thicker than the walls of auricles?

Answer 1

The walls of the Ventricles are thicker than the walls of the auricle since blood is pumped to the different parts of the body from the auricle thus requiring it to be thicker to handle the pressure applied.

Answer 2

The auricle? This is just what is left of the primordial atrium and in adult life is just a small ear shaped (that where the name comes from) pouch on the right artium. It has almost no function other than to increase the volume of the atrium and its contraction force is roughly similar to that atrium. The atria dont have very thick walls as they do not need to pump very hard to get the blood into the ventricles. The ventricles must get the blood all around the body (left ventricle) or to the lungs (right ventricle) which require much more force and so the walls arethicker to provide the necessary strength.

Answer 3

The cardiovascular system can be described as three parts: the pump, the pipes, and the fluid. As the pump, the heart walls, specifically in the ventricles, are made of thick muscle, in order to generate enough force to move blood to the rest of the body. The aorta on the other hand is part of the pipe system. The do not need to generate movement, so thick walls are unnecessary. The walls of the aorta do flex and contract was blood is pumped through them, but it is in response to the heart muscle contraction, and this flexibility allows it to maintain a stable blood pressure.

Answer 4

This is just what is left of the primordial atrium and in adult life is just a small ear shaped (that where the name comes from) pouch on the right artium. It has almost no function other than to increase the volume of the atrium and its contraction force is roughly similar to that atrium. The atria dont have very thick walls as they do not need to pump very hard to get the blood into the ventricles. The ventricles must get the blood all around the body (left ventricle) or to the lungs (right ventricle) which require much more force and so the walls arethicker to provide the necessary stren

Answer 5

The right ventricle pumps blood through the pulmonary arteries into the lungs. Because the lungs are very close to the heart, the right ventricle doesn't have to work as hard as the left ventricle so its wall is not as thick. The left ventricle pumps blood through the aorta to the rest of the body. This requires the left ventricle to pump very hard and this causes the wall of the left ventricle to become thicker.

Answer 6

the ventricle wall is thicker as it needs to pump blood from the heart to other parts of the body (either the lungs, or other parts of the body, depending which side of the heart is concerned). its extra thickness is due to more cardiac muscle, giving a stronger force of contraction to allow the blood to pumped further, under higher pressure. little muscle is needed to force blood from the atria into the ventricles, so the atrial walls are relatively thin.

in a human heart, the right-hand side of the heart is smaller than the left as less muscle is needed for the pulmonary cycle (blood being pumped to the lungs from the right ventricle) as the blood does not need to travel as far and under such high pressure as it does when pumped all around the body from the left ventricle.

Answer 7

Because they need to be stronger. The atria only pump the blood into the lower chambers, the ventricles. Whereas, they have to pump the blood either to the heart or the rest of the body.

Answer 8

because the left ventricle pumps blood to the rest of the body

Answer 9

Because both ventricles need greater pressure to pump blood. The right ventricle pumps deoxygenated blood to the lungs and the left ventricle pumps oxygenated blood to the whole body.