Heart

If your heart is not beating right, you need to see a cardiologist.

well sometimes it can just happen to anyone for any reason but it can also happen because you are not taking care of your heart or they may also have a blocked artery

valves

Many people who worked with asbestos did not develop a disease, although many did. Some of those who developed asbestosis or lung cancer as a result of working with asbestos did survive the disease, at least for a time. Mesothelioma, another disease caused by asbestos, has a very low survival rate, but a few people survive even that disease.

Of course ... Heart Surgeons have seen many hearts.

Back flow of blood in the heart is prevented by one-way valves. The blood is pushed through by the force of contraction, the valves close, blood can't flow back. The valves are: Tricuspid = between the upper chamber (Right atrium) and the lower chamber (Right ventricle) Pulmonary semilunar = between the Right ventricle and the Pulmonary trunk Mitral (or bicuspid) = between the Left atrium and the Left ventricle Aortic semilunar= between the Left ventricle and the Aorta If the Mitral (or bicuspid) valve is weakened, the blood might seep back into the Left atrium (Mitral Valve Prolapse) but normally it does not. More info can be find on http://en.wikipedia.org/wiki/Heart Hope it helps.

the left atrium receives oxygen rich blood via the pulmonary vein

The tricuspid valve is located between the right atrium and the right ventricle of the heart. It is the largest of the four valves in the heart.

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The prefix is endo- which means inside or inner.

The heart is protected from shocks an injuries by the sternum and rib cage, its bony protection. In addition, the pericardium and pericardial fluid provide additional protection.

Yes, somewhat. If the heart rate slows enough (bradycardia), it means that not enough blood is being pumped to meet the demands of the body. This leads to a feelilng of being short of breath. However, it's not necessarily the lungs that are the problem...it's the heart not pumping enough to perfuse the blood volume needed to properly exchange oxygen and carbon dioxide through the lungs.

Yes, your heart can shut down or die due to a heart attack. In a heart attack, heart muscle dies as a result of lack of oxygen. This tissue death can lead to conduction abnormalities that make the heart work ineffectively or stop working altogether.

No. It will be too risky. But then your surgeon is the best judge.

it beats around 70 times a minuter

deoxygenated blood

Not if you're a human. The human heart has four chambers. If you are a reptile or an amphibian then yes, it would be normal to have three chambers in your heart.

Sever allergies can cause the body to go into shock and one of the signs of shock is a fast heart rate (tahcycardia).

If you are taking synthroid it is very important to have your thyroid levels (TSH, T4, T3, Free T) monitored via bloodwork, synthroid is a synthetic hormone that is used to treat typically hypothyorid (low thyroid) these hormones can effect your heart via your metabolic rate so the importance of monitoring this level is essential please follow up ASAP with your doctor.

The progressives! The progressives!

Winnie the pooh or poo? if poo you need to eat more fruit and veg! and drink more water, try not to get to dehydrated.

Omega 3 fatty acids - found in abundance in certain fish, such as salmon, tuna and others, as well as in flax seed oil - are heart healthy dietary lipids.

Olive oil is a monounsaturated fatty acid which is also a heart healthy dietary lipid.

Yes. A tattoo has no connection to heart conditions.

Congenital heart disease is heart disease that was present at birth.