The Heart

The Electrocardiogram Explained

The electrocardiogram is a diagnostic test that provides information about the electrical activity of the heart. A detailed description about what an electrocardiogram is has been discussed here. In this section, we explain the ‘waves’ that are seen on the electrocardiogram in a little more detail. [toc]The normal ECG A normal electrocardiogram contains the following …

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The Heart Valves

There are four different valves present in the heart. These are – Mitral valve Tricuspid valve Aortic valve Pulmonary valve The mitral valve lies between the left atrium and left ventricle. The tricuspid valve lies between the right atrium and the right ventricle. The aortic valve lies at the origin of the aorta and the …

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Coronary circulation – The Flow Of Blood Around The Heart

How does blood flow through the heart? The heart itself requires good blood flow in order for it to function normally. This blood flow is achieved with the blood flowing through small arteries that lie on the surface of the heart. These arteries are known as the coronary arteries. The circulation of blood through the …

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