How does the four chambers of the heart work?

Answer 1

Well first the heart does have four chambers

right atria- Blood comes into this part from the vena cava and is pumped to the right ventricle

right ventricle - pumps blood to the lungs by way of the pulmonary artery ( the only artery in the body carrying un-oxygenated blood).

left atria - blood returns to the heart through the left atria from the pulmonary vein ( only vein in the body carrying oxygenated blood.

left ventricle - Blood is pumped from here through the aorta to the rest of the body

The four chambers all have valves that do not allow back flow to occur. the reason for the chambers is to use as a holding tanks in between heart beats as well as provide a stop point before and right after the blood is oxygenated.

Answer 2

The superior vena cava (SVC) and the inferior vena cava (IVC), carry blood back to the heart and empty into the right atrium. The right ventricle in the passive filling phase relaxes and the elasticity of the walls decreases. This causes blood to flow into the ventricle through the tricuspid valve. When the pressure has equalized, blood stops filling the right ventricle and the right atrium contracts to top off the right ventricle. As the right ventricle begins to contract the tricuspid valve shuts to prevent backflow of blood into the right atrium. Because the pulmonary valve is also closed, there is isovolumic contraction, i.e. while the volume of the right ventricle does not change, the elasticity of the wall increases. In this way, the pressure builds in the right ventricle. When the pressure in the right ventricle becomes greater than the pressure in the pulmonary artery, the pulmonary valve opens and blood is pumped into the pulmonary circulation. When the pressure in the right ventricle falls below the pressure in the pulmonary artery, the pulmonary valve closes to prevent back flow of deoxygenated blood from the lungs into the right ventricle. The blood in the pulmonary arteries flows to the lungs and is oxygenated while the right ventricle begins its relaxation and filling phase again. The left ventricle then begins to contract and the mitral valve shuts to prevent back flow into the left atrium. With the aortic valve shut, the left ventricle undergoes isovolumic contraction and the pressure in the left ventricle builds. When it is greater than the pressure in the aorta, the aortic valve opens and the ejection phase begins. Blood is pushed out of the left ventricle into the systemic circulation. When the pressure in the left ventricle drops below the pressure in the aorta, the aortic valve closes and the left ventricle relaxes and then begins to fill. The two atria contract in concert as do the two ventricles, so you can imagine them as two pumps performing their work in parallel: the right side sending blood to the lungs to be oxygenated, the left side sending blood the systemic circulation to be used by the body.

Answer 3

the artia of heart recive blood from veins,right artium has two major opening where large veins enter the heart from various part of body,the left artium has four opening that receive the four pulmonary veins from lungs

Answer 4

The four chambers of the heart are connected through tissues, just like any other muscles in the body.