Left vs Right Ventricle
Heart has four chambers: two upper atria and lower two ventricles. The right side of the heart deals with the deoxygenate blood, and left side of the heart is oxygenated blood. The right atrium receives the deoxygenate blood from the body system, and left atrium receives oxygenated blood from the lungs. The right ventricle receives blood from the right atrium and it pumps deoxygenated blood into lungs. The left atrium receives oxygenated blood from the lungs and it pumps it into the left ventricle. The left ventricle pumps it throughout the body.
The lower two chambers are separated by a septum. The function of the both left and right ventricle is, pumping the blood to lungs or to the whole body. Ventricles are much bigger than the two atriums and the walls of the two atriums are thinner than the walls of two ventricles.
Right Ventricle
The right ventricle is connected with the right atrium. The deoxygenated blood, which is circulated throughout the body, enters to the right atrium and then enters to the right ventricle through the tricuspid valve. When right atrium filled with deoxygenated blood, it enters the right ventricle after it contracts. When right atrium is contracting, the tricuspid valve opens, and blood enters the right ventricle. The contraction of the right ventricle opens the pulmonary valve. Blood enters the left and right lungs through the pulmonary artery.
The wall of the right ventricle is thinner than the left ventricle since it pumps blood to the lungs through the pulmonary artery. It does not generate high pressure to pump the blood since it deals with the pulmonary circulation.
Left Ventricle
The left ventricle is connected with left atrium. The oxygenated blood, which has passed through the lungs, enters the left atrium through the pulmonary veins. The contraction of the left atrium opens the bicuspid valve, and oxygenated blood enters to the left ventricle. The contraction of the left ventricle pumps the blood to the aorta through the aortic valve with high pressure then to the whole body.
Since left ventricle is connected with the systemic circulation, it should pump the blood to the whole body, and left ventricle generate high pressure than the right ventricle. So the wall of the left ventricle is thicker than the right ventricle.
Left Ventricle and Right Ventricle
- Right ventricle is a part of pulmonary circulation, while the left ventricle is a part of systemic circulation.
- Right ventricle contains deoxygenated blood, but the left ventricle contains oxygenated blood.
- The wall of the right ventricle is thinner than the left ventricle, since left ventricle is connected with the systemic circulation it should pump the blood to the whole body and left ventricle generate high pressure than the right ventricle.
- The right ventricle is connected with tricuspid valve and the left ventricle connected with the bicuspid valve.
- The contraction of right ventricle opens the pulmonary valve and blood enters to the left and right lungs through the pulmonary artery, whereas the contraction of left ventricle pumps the blood to the aorta through the aortic valve with high pressure then to the whole body.