Heart

visceral pericardium

A Patent (Open) Foramen Ovale bypasses the lungs by short circuiting blood flow from the right atrium to the left atrium.

Possibly, but it could just be a heavy period. The clumps and cramps worry me though. You should call your doctor and talk to them. There are things that need to be done a lot of the time after a pregnancy.

go to a doctor right away.

Blood return to the right atrium of the heart through the superior and inferior vena cavae. Blood then travels to the right ventricle and leaves the heart through the pulmonary veins. The pulmonary veins lead to the lungs where blood is oxygenated. Oxygenated blood returns the left atrium of the heart via the pulmonary veins. Then blood travels to the left ventricle and leaves through the aorta.

=== ===

If we get scared by something, the blood rushs around more quickly because you suddenly panic. If you have not been scared by something, then you could have something more serious, like SVT. I am not a doctor, but if you are not being scared for you heart rate to rise, you should see a doctor. (Byt the way, the average heart rate is between 60-80 bpm)

sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers

Pericardial region, or the mediastinum.

The myocardium is located between the endocardium and the visceral layer of the serous membrane (epicardium) of the heart.

Purkinje fibers

for the right atrium and right ventricle, the tricuspid valve separates the two. For the left, the mitral valve separates the two.

I believe that, when your heart has stopped, you have until your brain stops functioning as well before your body begins the decaying process. I believe this works both ways. If cryogenics are involved- freezing the body tissue- you can survive intact for longer. Eventually, though, even with cryogenics, the body will degenerate without brain and heart function. So basically, once your heart has stopped, you have until your brain runs out of oxygen before you are physically dead. On a similar note, people who have been beheaded can retain brain function for a few minutes at the least, thus being technically alive.

There are 2 or 3 methods for blood to return to the heart.

The first method is by pressure. Enough pressure is generated in the heart to push the blood through the arteries, arterioles, capillaries, venules, veins, and back into the heart. The right side of the heart only pumps blood into the lungs and back to the heart and requires less pressure than the left side that pumps to the rest of the body, although the volume must be identical for the two halves.

The second method is a pumping method by muscle contraction. This is especially true of the calf muscles in the leg pumping the blood back to the heart.

A third method would be gravity for anything above the heart, including the head, or any limb that was elevated. Elevation can be used to decrease pressure and help reduce swelling.

No go for it and if u lose 1 that would be my falt for telling you yo go for it

the always beats resting or not, if it stopped you would die.

But assuming you mean how often does it beat during rest. Well that depends on how fit you are.

Someone, like a runner, who does a lot of Cardio-vascular exorcise (gets the heart pumping fast) will have stronger heart muscles than some one who sits around all day. This means that their heart doesn't need to beat as fast as it can push more blood around the body in one pump than the other persons.

for the average healthy (but not fit) man its 64-72 beats per minute at rest and for the Average healthy Woman around 72-80 BPM

In Britain, they are the House of Lords and the House of Commons. In Canada, they are the Senate and the House of Commons.

Blood flows through the walls of the lungs to release carbon dioxide and to absorb oxygen for distribution throughout the body.

Every living person is at risk of a heart attack. Heart failure is the leading cause of death even if it is secondary to another disease like cancer or other life threatening disease. This makes the classification of actual cause of death speculative. If a person only smokes for a year of their life and dies, smoking can be placed as the cause. People who have poor diets, do not exercise, eat too much salt, eat high cholesterol foods, smoke and drink to excess can be classified as high risk to heart disease.

Left-sided heart catheterization is performed by way of a catheter through an artery which tests the blood flow of the coronary arteries, function of the mitral and aortic valves, and left ventricle.

The right side of the blood receives deoxygenated blood from the systemic (body) circulation. The right atrium receives blood from the systemic veins and pumps it into the right ventricle. At that point, the right ventricle pumps that blood to the lungs.

Coronary heart disease (CHD) is caused by two factors: atherosclerosis and coronary thrombosis. Atherosclerosis is narrowing of the arteries (especially the coronary arteries) by the build up of a fatty substance (cholesterol) in the artery wall. This cholesterol comes from the LSD cholesterol caried in the blood. Thrombosis is the formation of a blood clot. If this happens where the atrery is already narrowed it can block the artery completely, cutting off the supply of oxygen and glucose to the heart muscle. This is a heart attack. Factors which increase the risk of CHD include: * obesity * lack of exercise * smoking pot * poor diet (eg high levels of fat or salt) * excess alcohol consumption *bacon hat wearing
Smoking, stress, high cholesterol, high blood pressure, and drug use can be contributing factors to heart disease. Some medical conditions like diabetes and obesity can also contribute to heart disease. There are also genetic factors.

The AV or atrioventricular valves are the valves which separate the upper chambers (the atria) from the lower chambers (ventricles) of the heart.

The AV valve on the left side of the heart is known as the left atrioventricular (AV) valve or the mitral valve.

The AV valve on the right side of the heart is known as the right atrioventricular (AV) valve or the tricuspid valve.

Your heart could feel like it is flip flopping due to your blood pressure being to high and causing a heart attack. Your adrenaline could be really pumping as well. If it goes on too long it is important to see a doctor.

The Heart pumps your blood around your body because if it didn't you would die. You would die, because blood creates energy around your body, and if a certain part (let's say it's the leg) doesn't get enough blood there, it would fall asleep, and eventually fall off. Do you want your leg to fall off? No. If too many parts fall off, you die.

In the interventricular septum lies the hindle of His (pronounced hiss) and the bundle branches. These structures carry the impulses from the AV node down to the purkinje fibres.

The wall of muscle separating the right and left atria is the interatrial septum. The interventricular septum separates the right and left ventricles.