What is the movement of blood during the instrinsic process of the heart?
928397
the blood comes into the heart from systemic circulation. it enters the right atrium, then moves through the right atrial ventricular valve to the right ventricle. it pumps up into the pulmonary semilunar valve, goes into the pulmonary trunk and heads to the lungs via the pulmonary artery to pick up oxygen. oxygenated blood then comes back to the heart throught the pulmonary vein, enters the left atrium, goes to the left ventricle through the left atrial ventricular valve, and gets pumped into the aorta to head to systemic circulation again. that answer your question?
890787
Simple, bad blood goes from the heart to the lungs thru the pulmonary veins, and return to the heart already oxygenated thru the pulmonary arteries..☺
728324
Let's just call it Blood Pathway =)\n\nfrom ur system (outside the heart) unoxygenated blood --> right atrium --> tricuspid valve ---> right ventricle ---> pulmonary artery --> lungs (oxygenates blood) ---> pulmonary vein (blood is already oxygenated) ---> left atrium --> bicuspid valve --> left ventricle ---> system (outside heart) \n\nthe cycle goes back... \n\nAlways remember that the atria are the receiving chambers of the heart while the ventricles are the pumping chambers of the heart.\n\nThere are three varieties of blood vessels: arteries, veins, and capillaries. During blood circulation, the arteries carry blood away from the heart. The capillaries connect the arteries to veins. Finally, the veins carry the blood back to the heart.
937883
Our heart is a pump, a very efficient one. The whole body consists of various circuits. And there are valves which control the flow of blood. Since the heart pumps blood, that is, it sends the blood at a certain pressure, the flood flows to various body parts and back, whatever the body position is, horizontal or vertical. This applies to the lowest part of our bodies (foot) too, when we stand up.
537443
Circulatory is just like a train or subway. It carries all the blood lightening fast through the body, then back to the station at the heart.
359505
Ill try-\nBlood comes into the right atrium, then to the right ventricle..it stays on the right side at first.  This blood doesnt have any oxygen in it, so the first thing you have to do is get it oxygenated-So, the blood goes from the right ventricle to the lungs.  Here, the blood picks up oxygen for the rest of the body, but it still has to be pumped to the rest of the body.  So the blood goes fro mthe lungs back to the heart, but this time it goes into the left atrium, then the left ventricle-from there is goes everwhere in the body, delivering oxygen.  Now, once the body has taken all the oxygen out, the blood goes back to the right atrium, for the whole cycle to start again.\nhere's the overall flow:\n\nBlood from the body without oxygen--->\nright Atrium--->Right Ventricle--->\nLungs, so it can get oxygen--->\nLeft Atrium--->Left Ventricle--->\nRest of the body, to deliver oxygen---->\nBack to the right atrium once the oxygen is used.
370378
valves inside the vein open and close with the beat of the heart that pushes the blood thru the veins. With one beat the valve opens and one it closes with the closing of the valve the blood cannot backflow.  When it does it causes things like a heart murmur
1003119
look at this 3D pic then read\n\nhttp://library.thinkquest.org/C003758/rotate.htm\n\nIn the human body, the heart is normally situated slightly to the left of the middle of the thorax, underneath the sternum (breastbone). The heart is usually felt to be on the left side because the left heart (the left part of the heart) is stronger (it pumps the blood out). The heart is enclosed by a sac known as the pericardium and is surrounded by the lungs.Betwen the pericardium and the heart there is a serous fluid to reduce friction during heart contractions. The apex is the blunt point at the base of the heart. A stethoscope can be placed directly over the apex and count the beats. In normal adults, its mass is 250-350 g (8-11 oz), but extremely diseased hearts can be up to 1000 g (2 lb) in mass. It consists of four chambers, the two upper atria (singular: atrium ) and the two lower ventricles. On the right is a picture of a fresh human heart which was just removed from a 64 year old British gentleman. The mass for a thin white male is usually 270-300 grams (9-11 ounces) with little fat.\n\nA septum divides the right atrium and ventricle from the left atrium and ventricle, preventing blood from passing between them. Valves between the atria and ventricles (atrioventricular valves) maintain coordinated unidirectional flow of blood from the atria to the ventricles. The ventricular systole consists of the contraction of the ventricles and flow of blood into the circulatory system. Again, once all the blood empties from the ventricles, the pulmonary and aortic semilunar valves close. Finally complete cardiac diastole involves relaxation of the atria and ventricles in preparation for refilling with circulating blood.\n\nThe function of the right side of the heart (see right heart) is to collect deoxygenated blood from the body and pump it into the lungs (pulmonary circulation)so that carbon dioxide can be dropped off and oxygen picked up. This happens through a process called diffusion. The left side (see left heart) collects oxygenated blood from the lungs and pumps it out to the body (systemic circulation). On both sides, the lower ventricles are thicker than the upper atria.\nOxygen-depleted or deoxygenated blood from the body enters the right atrium through two great veins, the superior vena cava which drains the upper part of the body and the inferior vena cava that drains the lower part which drains the portal cyrculation too full with nutrients to nourish the body. The blood then passes through the tricuspid valve to the right ventricle. The right ventricle pumps the deoxygenated blood to the lungs, through the pulmonary artery. In the lungs gaseous exchange takes places and the blood releases carbon dioxide into the lung cavity and picks up oxygen which is called external respiration. The oxygenated blood then flows through pulmonary veins to the left atrium. From the left atrium this newly oxygenated blood passes through the mitral valve (also called the bicuspid valve) to enter the left ventricle. The left ventricle then pumps the blood through the aorta to the entire body. Even the lungs take some of the blood supply from the aorta via bronchial arteries.\n\nThe left ventricle is much more muscular, which is 1.3 - 1.5 cm (.5-.6 in) thick, than the right, 0.3 - 0.5 cm ( .1-.2 in) thick, as it has to pump blood around the entire body, which involves exerting a considerable force to overcome the vascular pressure. As the right ventricle needs to pump blood only to the lungs, it requires less muscle.\n\nEven though the ventricles lie below the atria, the two vessels through which the blood exits the heart (the pulmonary artery and the aorta) leave the heart at its top side.\n\nThe contractile nature of the heart is due to the presence of cardiac muscle in its wall which can work continuously without fatigue. The heart wall is made of three distinct layers. The first is the outer epicardium which is composed of a layer of flattened epi
504073
Justhelpingout is right, bleeding is a loss of blood outside the coronary system. The heart is just a pump that moves blood.
797207
A gas moves from a high pressure to a low pressure. When you breathe in, the partial pressure of oxygen in the lungs is higher than in the blood. Therefore the oxygen will move from the lungs to the blood. The exact opposite is true for carbon dioxide.
587816
Look it up on wikipedia and associative references for good discriptions.  In short:\n\nMuscle fibres in left / right atrium ventricle (4 chambers) responsible for mechancial motion.\n\nStimulation of these muscle fibers is however required to instigate the 'cardiac cycle'  this is done by passing electrical signals throught the heart through special impulse nodes.  Look it up for more detail!
204353
I thought I answered this question already\n\nThe above two are wrong, because this has nothing to do with physics.... Pressure is higher in the arms because the arms are closer to the heart and lungs. Pressure is highest closer to the heart because the heart pumps the blood.\n\nAlso, there is the factor that oxygen is in the blood. Blood is oxygenated at the lungs. Blood has the highest pressure when it is fully oxygenated, closer to the lungs and in arteries. It has less pressure in capellaries and least in veins. It has less pressure further aweay from the heart and lungs in conclusion.
1109512
The Circulation of Blood\n\nThe human circulatory system is really a two-part system whose purpose is to bring oxygen-bearing blood to all the tissues of the body. When the heart contracts it pushes the blood out into two major loops or cycles. In the systemic loop, the blood circulates into the body’s systems, bringing oxygen to all its organs, structures and tissues and collecting carbon dioxide waste. In the pulmonary loop, the blood circulates to and from the lungs, to release the carbon dioxide and pick up new oxygen. The systemic cycle is controlled by the left side of the heart, the pulmonary cycle by the right side of the heart. Let’s look at what happens during each cycle:\n\nThe systemic loop begins when the oxygen-rich blood coming from the lungs enters the upper left chamber of the heart, the left atrium. As the chamber fills, it presses open the mitral valve and the blood flows down into the left ventricle. When the ventricles contract during a heartbeat, the blood on the left side is forced into the aorta. This largest artery of the body is an inch wide. The blood leaving the aorta brings oxygen to all the body’s cells through the network of ever smaller arteries and capillaries. The used blood from the body returns to the heart through the network of veins. All of the blood from the body is eventually collected into the two largest veins: the superior vena cava, which receives blood from the upper body, and the inferior vena cava, which receives blood from the lower body region. Both venae cavae empty the blood into the right atrium of the heart.\n\nFrom here the blood begins its journey through the pulmonary cycle. From the right atrium the blood descends into the right ventricle through the tricuspid valve. When the ventricle contracts, the blood is pushed into the pulmonary artery that branches into two main parts: one going to the left lung, one to the right lung. The fresh, oxygen-rich blood returns to the left atrium of the heart through the pulmonary veins.\n\nAlthough the circulatory system is made up of two cycles, both happen at the same time. The contraction of the heart muscle starts in the two atria, which push the blood into the ventricles. Then the walls of the ventricles squeeze together and force the blood out into the arteries: the aorta to the body and the pulmonary artery to the lungs. Afterwards, the heart muscle relaxes, allowing blood to flow in from the veins and fill the atria again. In healthy people the normal (resting) heart rate is about 72 beats per minute, but it can go much higher during strenuous exercise. Scientists have estimated that it takes about 30 seconds for a given portion of the blood to complete the entire cycle: from lungs to heart to body, back to the heart and out to the lungs.\n\n^_^
540302
Working out increases body reactions and heart beat. Increased heart beat increases blood flow. Increased bloodflow and pressure from the heart to other parts of the body and from other body parts to the heart makes the veins to bulge. This is a natural thing that happens to all human beings.
283577
Arteries pump blood away from the heart and toward the arms and legs.  Most clots are in the veins, which can break off and move to the heart and then to the lungs.
363650
force exerted by the blood upon the walls of the arteries. The pressure in the arteries originates in the pumping action of the heart, and pressure waves can be felt at the wrist and at other points where arteries lie near the surface of the body (see pulse). Since the heart can pump blood into the large arteries more quickly than it can be absorbed and released by the tiny arterioles and capillaries, considerable inner pressure always exists in the arteries. The contraction of the heart (systole) causes the blood pressure to rise to its highest point, and relaxation of the heart (diastole) brings the pressure down to its lowest point.\n\nBlood pressure is strongest in the aorta, where the blood leaves the heart. It diminishes progressively in the smaller blood vessels and reaches its lowest point in the veins (see circulatory system). Blood pressure manifests itself dramatically when an artery is severed or pierced and the blood (under pressure) ejects in spurts.\n\nSince blood pressure varies in different arteries, the pressure in the brachial artery of the forearm serves as a standard. A sphygmomanometer measures blood pressure in millimeters of mercury; blood pressure gauges that do not use mercury also produce readings that are expressed in terms of millimeters of mercury. The normal blood pressure readings in young people are about 120 mm for systolic pressure and about 80 mm for diastolic pressure, commonly written as 120/80 and read as "one-twenty over eighty." With age, and the constriction of the small arteries and then the larger ones, blood pressure increases, so that at 50 years, normal individuals have a systolic pressure between 140 and 150, and a diastolic pressure of about 90.
310759
http://www.bloodbook.com/pump_your_blood.html\n\n"PUMP YOUR BLOOD" SONG \n\nPump, pump, pumps your Blood.\n\nThe right atrium’s where the process begins, where the CO2 Blood enters the heart.\n\nThrough the tricuspid valve, to the right ventricle, the pulmonary artery, and lungs.\n\nOnce inside the lungs, it dumps its carbon dioxide and picks up its oxygen supply.\n\nThen it’s back to the heart through the pulmonary vein, through the atrium and left ventricle.\n\nPump, pump, pumps your Blood.\n\n \n\nPump, pump, pumps your Blood.\n\nThe aortic valve’s, where the Blood leaves the heart, then it's channeled to the rest of the bod.\n\nThe arteries, arterioles, and capillaries too bring the oxygenated Blood to the cells. \n\nThe tissues and the cells trade off waste and CO2, which is carried through the venules and the veins \n\nThrough the larger vena cava to the atrium and lungs, and we're back to where we started in the heart. \n\nPump, pump, pumps your Blood\n\nMy computer isn't bringing it up, but you are supposed to be able to listen to the "Pump your Blood" song and watch the video of the St. Joseph's Aspirin commercial here: \nhttp://www.stjosephaspirin.com/