Can u plz Expain the process of blood in the heart?
348268
see this gonna be a little long but u will know it only if u read it, k? \n there are 4 chambers in the human heart. the upper chambers are called atrium n the lower are called ventricles. there is a vertical partition called septum. the blood enters into the right atrium through two tube like veins called inferior n superior venacava. these venacavae carry De-oxygenated blood from the whole body.this blood which is in the atrium then goes to the right ventricle during the contraction of the atrium. at the same time blood enters the left atrium from a tube called pulmonary vein which comes from the lungs carrying oxygenated blood. when the atria contract ,this blood enters the left ventricle. when the ventricles contract the DE-oxygenated blood from the rt ventricle is pumped into pulmonary artery which goes to the lungs for oxygenation; and the oxygenated blood from the left ventricle is pumped throughout the body through the systemic aorta.
219471
First i would like to know, what do you mean by "TRACING"? do you mean the measurement of blood flow?\n\nSecondly i really dont know how you can connect right atrium and aorta ?\n\nIf it is left ventricle and aorta you can measure by dopper the flow and cavity size of the chamber
1017957
read here \n\nhttp://en.wikipedia.org/wiki/Metastasis\n\nthe process is called metastasis
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..☺
570523
Unoxygenated Blood goes from the heart to the lungs and becomes oxygenated.  It then goes back to the heart before being pumped out through the arteries and arterioles to all the parts of the body.  At this point nutrients and oxygen mix with the cells of the body and exchange oxygen for carbon dioxide.  It then goes back to the heart to begin the process over again.
179080
This is a very interesting question.  I wonder if there is a scientific answer for this.  Let me google it.....\n\nhttp://www.msnbc.msn.com/id/11023208/  is a great link for reading about the connection between the heart and the brain.  This was a good question and I learned alot.  Thanks.
600385
Cardiac cycle is the term used to describe the sequence of events that occur as a heart works to pump blood through the body. The frequency of the cardiac cycle is the heart rate.\n\nEvery single 'beat' of the heart involves three major stages: atrial systole, ventricular systole and complete cardiac diastole. The term systole is synonymous with contraction of a muscle. Electrical systole is the electrical activity that stimulates the myocardium of the chambers of the heart to make them contract. This is soon followed by Mechanical systole, which is the mechanical contraction of the heart.\n\nThe term diastole is synonymous with relaxation of a muscle.\n\nThroughout the cardiac cycle, the blood pressure increases and decreases.
754456
1) OK\n2) B - Blood enters the right atrium and pass through right atrio-ventricular valve (tricuspid), then pulmonary valve, left atrio-ventricular valve (mitral) and aortic valve.\nhttp://www.guidant.com/condition/heart/heart_valves.shtml\n3) OK
708223
Through the hepatic arteries and the hepatic veins.\n\nTechnically, the blood will go from the abdominal aorta to the liver theough the hepatic arteries, then the arterioles, then the capillaries of the liver through to the venuoles and then the veins which lead back to the hepatic veins which lead to the inferior vena cava which lead to the heart. The heart pumps the blood through the lungs, back to the heart and out the aorta where it travels back to the abdominal aorta.
967791
Hi. Blood platelets are the start of the clotting process. They stick together and thicken the blood at a wound (a good thing) or in artery (a bad thing). I don't think oxygen is the starter mechanism. The lungs provide oxygen for hemoglobin to absorb, so that oxygen is tied up.
848119
The sequence of events in the heart between the start of one contraction and the start of the next.
1142758
The pulmonary arteries carry blood from the heart to the lungs. They are the only arteries (other than umbilical arteries in the fetus) that carry deoxygenated blood.\n\nThe coronary circulation consists of the blood vessels that supply blood to, and remove blood from, the heart. The vessels that supply blood high in oxygen to the heart are known as coronary arteries. \n\nI'm providing you with a link so that you can read more about it if you like.  The link also has a helpful diagram of the heart that may interest you.
725571
A\nOxygen from the blood is used as it circulates through the body. It picks up more oxygen as it passes through the lungs. The heart just pumps it so that it reaches all parts of the body.
832162
The heart is a powerful muscle slightly larger than your clenched fist. It works as a pump to send oxygen-rich blood through all parts of your body. Blood contains oxygen and nutrients that every cell in your body needs to survive. The oxygen-rich blood travels throughout the arteries and vessels, nourishing the body so that it can function properly.\n\nYour heart will beat an average of 100,000 times per day. In that time, it pumps more than 4,300 gallons of blood throughout your entire body.
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^_^
138775
I found this great website http://www.yourpracticeonline.com.au/showcase.html\n\nIf you scroll right down to the bottom of the page there is a table in white, with a column labelled Heart, then under that click on the Heart Anatomy link. Sorry can't send you direct link - but this opens up a window with a superb anamation you can click around and even move around a 3d model of the heart. Then if you go through the presenation all the main items of the heart are shown.
50658
Somthing from the heart.