how blood flows through the heart?

Answer 1

bit by bit

Have a look at the wiki pages

See the diagram of the heart (anterior frontal view of the opened heart)?

Okay - so blood gets pumped out of the heart - the LEFT VENTRICLE into the AORTA (the red thing with 3 pipes sticking up) and from the aorta (the biggest artery in the body) it goes to all the parts of the body to supply blood (and oxygen and stuff).

Then it returns to the heart via the superior vena cava and inferior vena cava (see the blue pipes top and bottom on the left) and goes into the RIGHT ATRIUM. Remember - this blood has been de-oxygenated and needs to get oxygen now.

It goes into the RIGHT VENTRICLE and then is pumped to the lungs.

Then it comes back from the lungs into the LEFT ATRIUM and goes into the LEFT VENTRICLE and starts all over again.

If you need more info, especially about valves and such, have a look down the bottom of the page where it gives a breakdown of what the blood goes past or into from the Right heart and the Left heart. Also see some of the links for more information about the heart and blood flow.

Answer 2

It seems to me that what you are asking is how the blood flows through the heart muscle. The heart muscle is called the myocardium. It has a very important function. When the ventricles squeeze, the blood that is inside them is forced upward and outward. From the right ventricle it goes to the lungs and from the left ventricle it goes to the aorta and rest of the body. The left ventricle has thicker and stiffer walls. Sometimes people have problems with the mitral valve (between the left artium and left ventricle) so some of the blood regurgitates back into the left atrium which makes the amount of blood that is ejected from the heart less. The amount of oxygenated blood that is ejected from the heart is the ejection fraction.

During the resting phase (diastole) of the cardiac cycle:
*** The venous blood returning from the body (inside the superior and inferior vena cavae) passively fills the right atrium.
*** The oxygenated blood from the lungs (in the pulmonary vein) passively fills the left atrium.
*** The oxygenated blood in the aorta flows backward into the coronary arteries.

It is the blood in the coronary arteries that flow into the heart muscle (myocardium). The coronary arteries lie on the surface of the heart. Sometimes these coronary arteries are blocked by plaque or a blood clot. When this happens the heart muscle will not get oxygen (ischemia) that it needs to contract. Then the person may feel pain (angina). When the heart muscle does not get oxygen for a few minutes, it will die (infarction) this is the heart attack. The person may benefit from a coronary artery bypass graft (CABG) or other surgical procedure to repair the coronary arteries.

When a person's heart beats very fast, the time for this passive filling is shortened and the heart muscle (myocardium) does not receive enough much blood. If the person is an athlete and in some diseases the heart muscle may enlarge to compensate for this. But the heart can only enlarge a little bit because there is not much space. Look at the links below for more infomation about the heart physiology and how the blood flows through the atria and ventricles.

Answer 3

temporarily: a million. the midsection is created from 4 chambers, the top chambers noted as atrium and the decrease chambers noted as a ventricle. 2.The oxygen -unfavourable blood from the physique enters into the final atrium.by using the better and inferior vena-cava 3.The blood from the final atrium flows into the final ventricle wherein the circulate is triggered by using the S.A node ( sino atrial node) , the tricuspid valve recent in between the atrium and ventricle prevents the back circulate. 4. Blood from the final ventricle flows to the lungs by using the pulmonary artery to get oxygenated ( pulmonary artery is the only artery in the physique that contains deoxgenated blood) 5.The oxygenated blood from the lungs enters into the left atrium by using the pulmonary veins 6.The blood flows from the left atrium to the left ventricle. 7.From the left ventricle the blood flows to the aorta 8. The blood from the aorta pumps the oxygen -wealthy blood to the physique. hopes this works out for you :) you could recollect it plenty greater powerful in factors and once you have a diagrammatic presentation :)

Answer 4

Blood enters the heart from the inferior and Superior vena cava into the right atrium, thru the tricuspid valve into the right ventricle, up thru the pulmonary semilunar valve into the pulmonary veins to the lungs(where it picks up oxygen and gets rid of carbon dioxide, the waste product of oxygen metabolism) back from the lungs thru the pulmonary arteries, into the left atrium, thru the bicuspid (mitral) valve into the left ventricle, on thru the aortic semilunar valve into the aortic arch and the aorta...on to all the arteries in the body

Answer 5

first the blood has to make its way to the heart and everytime you breathe the blood gets closer to the heart and then the heart pumps the blood into it and out of it.